AU2022204550A1 - Portable barrier arm for manual traffic control - Google Patents

Abstract

Described herein is a portable barrier arm for manual traffic control. More specifically, a traffic control barrier comprising two paddles perpendicular (offset or out of phase approximately 90 degrees) to each other for controlling vehicle movement during emergencies, road construction, public events, or other activities. 21

Description

PORTABLE BARRIER ARM FOR MANUAL TRAFFIC CONTROL RELATED APPLICATIONS

This application derives priority from New Zealand patent application numbers 733660 and 738477

incorporated herein by reference.

TECHNICAL FIELD

Described herein is a portable barrier arm for manual traffic control. More specifically, a traffic control

barrier comprising two paddles perpendicular (offset or out of phase approximately 90 degrees) to each

other for controlling vehicle movement during emergencies, road construction, public events, or other

activities.

BACKGROUND ART

It is common practice to employ "flag men" to control traffic flow in highway construction zones. These

individuals manipulate passive signs which bear short, lettered, instruction messages, i.e., "STOP" or

"GO". The instructions are usually provided on opposite planar sides of a sign board, and the sign board

is typically mounted on the top of a pole, the opposite end of the pole being positioned on the ground.

The instruction transmitted to an approaching motorist is thus changeable by simply rotating the pole so

that the appropriate message is presented to approaching traffic.

For example, US Patent No. 6,134,819 discloses a portable illuminated traffic signal device. In particular,

a traffic signing device that includes a strobe light directed upon a portable traffic sign for alerting distant

motorists of an upcoming traffic condition and for enhancing readability of the traffic sign. The signalling

device includes a rotatable sign assembly releasably attached to a primary shaft suitable for holding by a

road construction worker. The sign assembly includes a handle which cooperates with a channel within

the primary shaft whereby the sign can be rotated to discrete, locked positions without repositioning the

primary shaft or strobe light. Thus, either side of a sign may be displayed to oncoming traffic while a

worker's eyes are always shielded from the strobe light.

US Patent No. 2015/0121731 discloses a traffic control paddle with extendable rod handle paddle having

a display sign having two opposing display sides; a unitary handle comprising a plurality of telescoping

tubes, the handle having opposing ends, the first end reversibly attachable to the display sign, the handle

adjustable between a fully extended position and a plurality of collapsed positions; a handle adjustment

means comprising a twist lock mechanism to convert the paddle between discrete positions; one or

more LED lights attached to the handle; and a base plate attached to the second end of the handle.

US Patent No. 9,305,472 discloses an illuminated traffic control paddle that includes a head with a handle and a head having two sides. The head has a perimeter, a face inset within the perimeter, a surface on the face carrying literal indicia, and an upstanding lip extending around the perimeter and projecting above the face. Two spaced-apart light-emitting diodes in the face are seated in annular projections. The handle carries batteries and a switch to provide power to the light-emitting diodes. The light-emitting diodes are spaced above and below the literal indicia on the face and are programmed to blink.

However, a disadvantage of the above traffic control paddles is that they do not provide a physical

barrier across a lane in the direct line of sight of a driver. A barrier being across the lane prevents a

vehicle from driving through or missing the traffic control paddle all together.

US Patent No. 4,065,104 discloses a portable barricade for use at school crossings, and the like, has a

frame mounted on wheels and is provided with at least one lamp assembly for warning parties

approaching the barricade of the presence of a potentially hazardous condition. Attached to the frame is

a brake which permits selective retention of the barricade in a desired position in a crosswalk or similar

location for a predetermined length of time. Once the need for the barricade at the particular location

has ended, the brake may be released and the frame moved to another location.

However, a disadvantage of the above barricade is that it is bulky and designed to close off a road for

substantial period of time without allowing vehicles to easily access in the interim. This is because the

entire barricade has to be wheeled away (once the brakes have been released) in order to allow vehicles

in the interim to pass through the lane.

Crossing guards play a vitally important role in school safety and traffic management. Traditional

crossing guards stand watch and operate a horizontal traffic control paddle comprising a barrier arm that

is removably attached to a permanently mounted vertical pole or the like. In order to control the

movement of traffic across a lane, the crossing guard walks out onto the lane thereby swinging out the

barrier arm into the line of traffic. However, a disadvantage of this apparatus and barrier operation is

that it exposes the crossing guard to live traffic when they walk out into the lane.

It should be appreciated from the above that there is a need for an apparatus for manual, automated

and/or remotely operated traffic control that provides a temporary physical barrier for traffic

management at road sites that avoids the need for "flag men" or crossing guards to walk out onto live

traffic. Furthermore, it would be advantageous if the above can be achieved with a simplified design

requiring minimal componentry or to at least provide the public with a useful choice.

Further aspects and advantages of the process and product will become apparent from the ensuing

description that is given by way of example only.

SUMMARY

Described herein is a portable barrier arm for manual traffic control. More specifically, a traffic control

barrier comprising two paddles perpendicular (offset or out of phase approximately 90 degrees) to each

other for controlling vehicle movement during emergencies, road construction, public events, or other

activities.

In a first aspect there is provided a portable barrier arm for manual traffic control comprising:

an elongate pole member having a top end and a bottom end, the top end having at least one

bearing mechanically coupled to the elongate pole member for axial rotation of the pole member in

at least one direction;

the bottom end of the pole base mounted to a base member;

a barrier arm linked to the top end of the elongate pole member via the bearing, and having a first

paddle member at a distal end with indicia thereon;

an elongate pole extension member attached to the barrier arm, and having a second paddle

member with indicia thereon mounted on the elongate pole extension member; and

a locking assembly for selectively locking the barrier arm in and releasing the barrier arm for

rotation from a stationary position,

wherein the barrier arm rotates from a stationary inwards position to an outwards position across a

road lane when the locking assembly is released from the stationary position, and

wherein the first and second paddle members are mounted perpendicular (offset or out of phase

approximately 90 degrees to each other) and the second paddle member is turned edge on and thus

the indicia thereon is not visible to a pedestrian and/or driver of a vehicle on the road lane.

In a second aspect there is provided a portable barrier arm for manual traffic control comprising:

an elongate pole member having a top end and a bottom end, each end having at least one bearing

mechanically coupled to the elongate pole member for axial rotation of the pole member in at least

one direction;

a base linked to the bottom end of the elongate pole via the bearing;

a barrier arm linked to the top end of the elongate pole member via the bearing, and having a first

paddle member at a distal end with indicia thereon;

an elongate pole extension member attached to the barrier arm, and having a second paddle

member with indicia thereon mounted on the elongate pole extension member; and

a locking assembly for selectively locking the barrier arm in and releasing the barrier arm for rotation

from a stationary position,

wherein the barrier arm rotates from a stationary inwards position to an outwards position across a road lane when the locking assembly is released from the stationary position, and wherein the first and second paddle members are mounted perpendicular (offset or out of phase approximately 90 degrees) to each other and the second paddle member is turned edge on and thus the indicia thereon is not visible to a pedestrian and/or driver of a vehicle on the road lane.

In a third aspect there is provided an automated or remotely operated portable barrier arm for manual

traffic control comprising:

an elongate pole member having a top end and a bottom end, the elongate pole member being

configured for axial rotation in at least one direction;

a base linked to the bottom end of the elongate pole for housing a motor and electronic

componentry;

a barrier arm having a first paddle member at a distal end with indicia thereon attached to the

elongate pole member;

a second paddle member with indicia thereon mounted to the top end of the elongate pole member

perpendicular (offset or out of phase approximately 90 degrees) relative to the first paddle member;

wherein the barrier arm rotates from a stationary inwards position to an outwards position when the

barrier arm is automatically or remotely operated such that the barrier arm is turned out across a

road lane and the second paddle member is turned edge on and thus the indicia thereon is not visible

to a pedestrian and/or driver of a vehicle on the road lane.

Advantages of the above are that the portable barrier arm is easy to operate and does not take long to

set up. The barrier keeps the operator out of live traffic as it avoids the need for the operator to walk out

onto the road. The barrier is visible from some considerable distance away and being at eye level and in

direct line of sight. Thus, providing a physical barrier across the lane such that a driver can not miss the

barrier or drive through the lane and hence meeting Code of Practice temporary Traffic Management

(COPTTM) standards for long-term worksites where MTCS are deemed Inappropriate. In a normal prior

art Stop/Go operation, the Manual Traffic Control (MTC) and paddle is difficult to identify amongst the

numerous collection of orange cones and equipment on a road site. The configuration where there is no

indicia on the reverse side of the paddles such as 'GO' means that drivers are not looking up the road at

the reverse side of the other operator's paddle. The barrier also avoids the problem of a fatigued

operator continuously having their paddle on 'Go', and only the apparatus is required to be manually

operated when traffic is required to be stopped. The barrier is portable which means that it can easily be

relocated/transported to provide temporary traffic management option at road work sites and the like.

For example, the base is lightweight and the poles and paddles are detachable or removable from the

base for compact storage. Also, the use of a removable cone that can easily be integrated into the

elongate pole meets temporary traffic management regulations. For the automated and/or remotely

controlled traffic control system, there is increased safety and economic benefits as either an operator is out of live traffic (operating via a remote) or not required as per a fully automated system.

BRIEF DESCRIPTION OF THE DRAWINGS

Further aspects of the portable barrier apparatus and uses will become apparent from the following

description that is given by way of example only and with reference to the accompanying drawings in

which:

Figure 1 illustrates a perspective view of an assembled portable barrier arm apparatus showing a road

cone inserted through an elongate pole member and with the barrier arm in the outwards stop

position;

Figure 2 illustrates a side perspective view of the same assembled portable barrier arm apparatus of the

embodiment of Figure 1;

Figure 3 illustrates a rear view of the same assembled portable barrier arm apparatus of the

embodiment of Figures 1 and 2;

Figure 4 illustrates a perspective view of the elongate pole member attached to the base and cone for

insertion thereon;

Figure 5 illustrates an enlarged perspective view of the coupling means and bearing for attaching the

barrier arm to the elongate pole member;

Figure 6 illustrates the locking assembly of the portable barrier arm apparatus;

Figure 7 illustrates a plan view of the barrier arm apparatus in use.

Figure 8 illustrates a front view of the remotely operated barrier arm apparatus embodiment showing

the barrier arm in both a stop and go position;

Figure 9 illustrates a top view of the same remotely operated barrier arm apparatus as shown in

Figure 9;

Figure 10 illustrates a front view of the same remotely operated barrier arm apparatus in use with two

way traffic flow where a vehicle in the left lane is in the 'go' position and a vehicle in the right

lane is in the 'stop' position respectively; and

Figure 11 illustrates a front view of the same remotely operated barrier arm apparatus in use with two

way traffic flow where a vehicle in the left lane is in the 'stop' position and a vehicle in the right

lane is in the 'go' position respectively.

DETAILED DESCRIPTION

As noted above, described herein is a portable barrier arm for manual traffic control. More specifically, a traffic control barrier comprising two paddles perpendicular (offset or out of phase approximately 90 degrees) to each other for controlling vehicle movement during emergencies, road construction, public events, or other activities.

For the purposes of this specification, the term 'about' or 'approximately' and grammatical variations

thereof mean a quantity, level, degree, value, number, frequency, percentage, dimension, size, amount,

weight or length that varies by as much as 30, 25, 20, 15, 10, 9, 8, 7, 6, 5, 4, 3, 2, or 1% to a reference

quantity, level, degree, value, number, frequency, percentage, dimension, size, amount, weight or

length.

The term 'substantially' or grammatical variations thereof refers to at least about 50%, for example 75%,

85%,95% or 98%.

The term 'comprise'and grammatical variations thereof shall have an inclusive meaning - i.e. that it will

be taken to mean an inclusion of not only the listed components it directly references, but also other

non-specified components or elements.

The term 'manual traffic control' or grammatical variations thereof should be understood to mean

providing road traffic control that involves directing vehicular and/or pedestrians or providing a physical

barrier around a school zone, construction zone, accident or other road disruption or the like, thus

ensuring the safety of emergency response teams, construction workers and the general public.

The abbreviation MTC should be understood to be a person employed by a contractor to manage traffic

through a worksite and may be used for situations that include: stopping traffic to avoid a hazard,

allowing traffic from opposite directions to use one lane alternately (alternating flow), stopping all road

traffic to allow construction traffic to cross or for blasting, or tree work, slowing traffic where they need

to travel very slowly, e.g. over new seal or in poor visibility, and giving road users verbal instructions or

directions.

The term 'paddle' or grammatical variations thereof should be understood to mean a paddle sign with

pole for displaying indicia for traffic and pedestrian safety concerns.

The term 'indicia' or grammatical variations thereof refers to signs, indications such as 'STOP', 'GO',

'SLOW' or the like on the paddles.

The terms 'automated' and 'automatically' or other grammatical variations thereof should be

understood to mean a traffic control system that emulates the actions and decisions of flagmen to

control and direct vehicular and/or pedestrian traffic. Such a control system may utilise a computer,

sensors, video cameras, radio communications and the like.

The term 'remotely operated' or grammatical variations thereof should be understood to mean a traffic

control system that utilises a remote control, radio communication or the like to control and direct

vehicular and/or pedestrian traffic.

In a first aspect there is provided a portable barrier arm for manual traffic control comprising: an elongate pole member having a top end and a bottom end, the top end having at least one bearing mechanically coupled to the elongate pole member for axial rotation of the pole member in at least one direction; the bottom end of the pole base mounted to a base member; a barrier arm linked to the top end of the elongate pole member via the bearing, and having a first paddle member at a distal end with indicia thereon; an elongate pole extension member attached to the barrier arm, and having a second paddle member with indicia thereon mounted on the elongate pole extension member; and a locking assembly for selectively locking the barrier arm in and releasing the barrier arm for rotation from a stationary position, wherein the barrier arm rotates from a stationary inwards position to an outwards position across a road lane when the locking assembly is released from the stationary position, and wherein the first and second paddle members are mounted perpendicular (offset or out of phase approximately 90 degrees to each other) and the second paddle member is turned edge on and thus the indicia thereon is not visible to a pedestrian and/or driver of a vehicle on the road lane.

The base may be a square plate and provide support and weight to anchor the barrier apparatus.

The base may also include fixing elements to retain a road cone that is mounted thereon the elongate

pole member.

In one embodiment, the base may optionally include hinged side members. In this way, the base can be

folded away for compact storage. Also, sand bags and the like may be rested on the hinged side

members to provide additional weight and prevent the apparatus from toppling over in adverse weather

conditions.

The elongate pole member or mast may comprise a steel tube that links and/or fixedly retains the base

to the barrier arm. As above, a road cone maybe inserted over the elongate pole member and thus

covers the elongate pole member. In this way, the apparatus meets regulations at temporary traffic

management (TTM) sites. It should be appreciated by those skilled in the art that the cone may be

replaced with other housings on non-TTM sites or may not have any housing.

In a preferred embodiment, the apparatus may include one top bearing that is manufactured out of

nylon and mounted above a cone top to provide axial rotation of the barrier arm.

In alternative embodiments, the apparatus may also include a bottom bearing mechanically coupled to

the bottom end of the elongate pole member for axial rotation of the pole member in at least one

direction.

In further alternative embodiments, the bearing may include a sliding cambered face to urge movement

of the barrier arm in an inward and outwards position. The bearing may be configured to allow at least

900 of movement of the barrier arm.

The locking assembly may comprise a locking pin and a latch. The gate latch style pin may slide over

bearing tube sides. In this way, when the barrier arm rotates and when the barrier arm reaches a full

open or closed position, the pin head may slot into a predrilled hole or opening in the bearing tube to

lock further arm movement. The head of the locking pin may be urged into the hole by a spring or other

such biasing means.

The latch may include a right angle external ending to allow the pin to be withdrawn from the hole

against bias by a user.

The barrier arm may extend across the elongate pole member or mast, such that the weight of the arm

may be balanced over the top of the mast. In this way, if the user releases the arm, the arm will balance

and not drop vertically or at least may not drop either side of the mast.

The barrier arm may be telescopic. In this way, the barrier arm may be extended and/or retracted form

the centre to full width of the lane or may be used to block off roadways of varying widths (1750 mm

4000) and keep components clear of the curbside if necessary.

The road ending of the barrier arm may extend out into the roadway when the paddle or sign is out and

may comprise usual markings along the shaft and standard indicia such as a 'STOP' sign at the shaft distal

end.

The road ending of the barrier arm may be manufactured out of rectangular hollow section steel (RHS).

However, this should not be seen as a limitation on the present invention. For example, the barrier arm

may be manufactured out of round pole section steel, plastic, composite material or the like.

The pavement ending of the barrier arm may be dimensioned so that it is long enough for a user to

comfortably grasp and manoeuvre when the barrier arm is rotated outwards onto the roadway.

The pavement ending of the barrier arm may include a counterweight at a distal end so as to allow for a

shorter shaft length than the road ending barrier arm as described above. Furthermore, the

counterweight helps to balance the arm over the mast.

The apparatus may include an elongate pole extension member attached to the barrier arm, and having

a second paddle member with indicia 'GO' thereon mounted on the elongate pole extension member.

The apparatus configured in this way may meet temporary traffic management (TTM) site requirements.

For TTM applications, the face of the first paddle member with indicia 'STOP' may be mounted

substantially perpendicular or at approximately 900to the face of the second paddle member with indicia

'GO' such that, when the barrier arm is in a closed position kerbside, the second paddle member with

'GO' indicia faces the on-coming traffic. In other embodiments, the second paddle member may be

removed when not used.

In a second aspect there is provided a portable barrier arm for manual traffic control comprising: an elongate pole member having a top end and a bottom end, each end having at least one bearing mechanically coupled to the elongate pole member for axial rotation of the pole member in at least one direction; a base linked to the bottom end of the elongate pole via the bearing; a barrier arm linked to the top end of the elongate pole member via the bearing, and having a first paddle member at a distal end with indicia thereon; an elongate pole extension member attached to the barrier arm, and having a second paddle member with indicia thereon mounted on the elongate pole extension member; and a locking assembly for selectively locking the barrier arm in and releasing the barrier arm for rotation from a stationary position, wherein the barrier arm rotates from a stationary inwards position to an outwards position across a road lane when the locking assembly is released from the stationary position, and wherein the first and second paddle members are mounted perpendicular (offset or out of phase approximately 90 degrees) to each other and the second paddle member is turned edge on and thus the indicia thereon is not visible to a pedestrian and/or driver of a vehicle on the road lane.

In a third aspect there is provided an automated or remotely operated portable barrier arm for manual

traffic control comprising:

an elongate pole member having a top end and a bottom end, the elongate pole member being

configured for axial rotation in at least one direction;

a base linked to the bottom end of the elongate pole for housing a motor and electronic componentry;

a barrier arm having a first paddle member at a distal end with indicia thereon attached to the elongate

pole member;

a second paddle member with indicia thereon mounted to the top end of the elongate pole member

perpendicular (offset or out of phase approximately 90 degrees) relative to the first paddle member;

wherein the barrier arm rotates from a stationary inwards position to an outwards position when the

barrier arm is automatically or remotely operated such that the barrier arm is turned out across a road

lane and the second paddle member is turned edge on and thus the indicia thereon is not visible to a

pedestrian and/or driver of a vehicle on the road lane.

The base may be a weather proof housing or rigid casing that encloses and protects additional

componentry or equipment.

The base may be of a sufficient weight to anchor the barrier apparatus and support the weight of the

barrier arm, yet still be of an optimal weight for ease of portability. It is envisaged the base may be

between approximately 20 - 40 kgs.

The base may also include a stand or feet members to raise the base above ground level thereby

providing additional protection from the elements. Also, the stand or feet members may provide

additional weight and stability to prevent the apparatus from toppling over in adverse weather

conditions.

In one embodiment, the base may optionally include handle side members. In this way, the base can be

easily lifted up and transported for portability.

The battery may be housed in the base comprising an in-built rechargeable battery with up to 14 hours

of continuous operation. In this way, no external power source is required. It is envisaged that the

battery may be a rechargeable lithium-ion battery or equivalent with high energy density, minimal

memory effect and low self-discharge.

The apparatus may comprise an actuator for moving and controlling the barrier arm. In one embodiment

the actuator is an LA12 manufactured by LinakTM of the type 12XX00-2XXX12XX having a 12V motor, 4

mm spindle pitch, 300 N thrust, 150 N self-lock, typical speed of 16-27 mm/s depending on load, stroke

length of 40-130 mm and operating between 1.75 - 2.5 amps. An actuator provides a practical and cost

effective alternative to small-scale traditional hydraulic and pneumatic systems. The LA 12 is ideal for

applications requiring short linear movements. However, this should not be seen as a limitation on the

embodiments envisaged for this invention as conceivably hydraulic, pneumatic and other types of

systems could be used with this apparatus.

The actuator may have permanent magnetic motor that operates between 12-24 V DC having a gear

ratio able to move the barrier arm and counteract wind resistance during rotation of the barrier arm.

The apparatus may comprise electronic circuitry and software program protocols developed by LodarTM

radio controls. For example, wiring and circuitry utilised from LodarTM 92 and 93 series, field transistor

(FET) receivers.

The apparatus may use a remote or radio control transmitter and receiver system that allows an

operator to be located at least 600 metres away from traffic, thereby providing a safe work site

environment. A remote control battery pack with alkaline manganese batteries (3-9 Volts) may provide

up to 200 hours of continuous and/or intermittent operation.

In one embodiment, the apparatus may use a Lodar radio transmitting unit with a single press

mechanism configured to operate within a temperature range of -20 0C to 550 C with an output of 1 mW

and IP rating between 55-67 and having a range of 60 -600 metres with an external aerial. In this way, a

sole operator can manage traffic through the worksite with repeated presses of a single button on the

remote/radio control unit. Furthermore, this allows for labour saving as only one operator is required to

control the traffic flow at both ends of the work zone.

The receiving unit may be a LodarTM 15 amp field-effect transistor (FET) for multiple switching

functionality having a complementary range of 60 - 600 metres.

The apparatus may use a camera system. In this way, a sole operator can manage traffic through the

worksite without requiring a line of site between the base units. As above, this allows for labour saving

as only one operator is required to control the traffic flow at both ends of the work zone.

The above remote/radio control system should not be seen as a limitation on the embodiments

envisaged for this invention. Other control systems may be conceivably used with this invention. For

example, the use of camera(s), sensor(s), wireless communications and other integrated technologies

may allow a fully automated system of operation with vehicle and/or pedestrian detection system that

does not require an operator to activate the barrier.

The elongate pole member or mast may comprise a light weight steel or aluminium tube that links

and/or fixedly retains the base to the barrier arm. The mast may include a 300 mm horizontal T-section

for connection of the barrier arm to the mast. The barrier arm may comprise a hollow flexible sleeve for

sliding engagement onto a fixed bracket that may be attached to the rotating elongate pole member.

A locking fastener may comprise a locking pin clip to removably retain the hollow sleeve of the barrier

arm onto the fixed bracket.

The elongate pole member or mast may be hollow for sliding engagement with a shaft of the motor. As

above, a locking fastener may comprise a locking pin clip to removably retain the elongate pole member

onto the motor shaft and provide the drive mechanism for axial rotation of the mast.

As above, the second paddle member may comprise either a 'GO' (RP41) or a 'SLOW' (RP42) sign that

maybe inserted over or removable mounted to the elongate pole member. The paddle may be used in

combination with the following signs in advance: T1A/B Road Works, TA2 manual traffic control, and TG1

speed limit -Temporary signs (30 km/h or less). In this way, the apparatus meets regulations i.e. code of

practice for temporary traffic management (COPTTM) sites.

The barrier arm may be manufactured out of lightweight plastic, fibreglass, or the like, such that the

weight of the arm may be minimised. However, this should not be seen as a limitation on the present

invention. For example, the barrier arm may be manufactured out of round or rectangular hollow section

(RHS) pole section steel or the like. In this way, the moment of force of the arm may be reduced and

prevent the apparatus from toppling over or causing undue strain on the motor and gearing mechanism

during axial rotation.

The road ending of the barrier arm may extend out into the roadway when the paddle or sign is out and

may comprise usual markings along the shaft and standard indicia such as a 'STOP' (RP4) sign at the shaft

distal end.

Furthermore, the apparatus that includes a barrier that extends out into the roadway may enhance

vehicular compliance at the 'STOP' sign by creating a physical barrier. In this way, the safety of MTC and

other people onsite is increased whilst complying with long-term worksite regulations (COPTTM) where

the use of MTCs are regarded as inappropriate and stop/go operations must not be used where two-way traffic flow can be maintained pasta worksite. According to guidelines, the recommended devices for traffic management at these worksites are portable traffic signals or barrier arm systems as described herein.

The axial rotation of the elongate pole or mast may permit movement of the barrier arm in a horizontal

plane. As noted above, the 'STOP' and 'GO" signs or paddles may be separate and mounted 90 degrees

out of phase with each other i.e. the face of the first paddle member with indicia 'STOP' may be

mounted substantially perpendicular or at approximately 900to the face of the second paddle member

with indicia 'GO' such that, when the barrier arm is in a closed or first position kerbside (the arm may be

turned to be aligned with the road edge and may not be visible to on-coming traffic), the second paddle

member with 'GO' indicia faces the on-coming traffic. In a second position, where the barrier arm may

be turned out across the road lane which presents the barrier arm with the 'STOP' sign to the driver, the

second paddle member with 'GO' sign is turned edge on to the driver and hence is not visible. An

advantage of this configuration is that the 'STOP' / 'GO" signs are prevented from both showing at any

one time to avoid confusion.

Further advantages of the above may include:

• Improved safety for a user as at no stage does the user need to step out on the pavement to

operate the barrier arm;

• The barrier arm has neutral weight balance provided by counterweight. Therefore, minimal

strength and balance needed to operate and hence suitable for use for children at school

crossings; • The apparatus is portable without the requirement of permanently installed mounting posts

which means that it can easily be relocated to provide temporary traffic management option at

road work sites and the like;

• The barrier arm is visible from some considerable distance away and being at eye level and in

direct line of sight. Thus, providing a physical barrier across the lane such that a driver can not

miss the barrier or drive through the lane and hence meeting COPTTM standards for long-term

worksites where MTCS are deemed inappropriate;

• The configuration of the barrier arm also avoids the problem of a fatigued operator

continuously having their paddle on 'Go', and only required to be manually operated when

traffic is required to be stopped;

• The use of a removable cone that can easily be integrated into the elongate pole meets

temporary traffic management (TTM) regulations;

• An apparatus with a base that is is lightweight where the poles and paddles are detachable or

removable from the base/motor unit allows for compact storage.

• For the automated and/or remotely controlled traffic control system, there is increased safety and economic benefits as either an operator is out of live traffic (operating via a remote) or not required as per a fully automated system with vehicle detection.

The embodiments described above may also be said broadly to consist of the parts, elements and

features referred to or indicated in the specification of the application, individually or collectively, and

any or all combinations of any two or more said parts, elements or features.

Further, where specific integers are mentioned herein which have known equivalents in the art to which

the embodiments relate, such known equivalents are deemed to be incorporated herein as if individually

set forth.

WORKING EXAMPLES

The above described apparatus and use is now described by reference to specific examples.

EXAMPLE 1

With reference to Figures 1, 2, and 3, an assembled portable barrier arm apparatus 1 with road cone 2

inserted through an elongate pole 3 (best seen in Figure 4) and barrier arm 4 in the outwards stop

position is shown.

The base 5 is a metal square plate that provides support and weight to anchor the barrier arm apparatus

(best seen in Figure 4). The base 5 includes fixing elements 6 to fixedly retain a road cone 2 that is

inserted over the elongate pole member 3 to act as a cover to satisfy regulations at temporary traffic

management (TTM) sites.

A top bearing 7 (best seen in Figures 4 and 5) is mechanically coupled to the top end of the elongate pole

member 3 for axial rotation of the pole member 3. The bearing 7 is manufactured out of nylon and is

configured to allow at least 900 of movement of the barrier arm 4.

As shown in Figure 6, the locking assembly 7 comprises a locking pin and a latch. When the barrier arm 4

rotates and when the barrier arm 4 reaches a full open or closed position, the pin head 8 slots into a

predrilled hole or opening 9 of the elongate pole 3 to lock further arm 4 movement. The head 8 of the

locking pin is urged into the hole 9 by a spring. The latch includes a right angle extrusion to allow the pin

to be withdrawn from the hole 9 against bias by a user.

As shown in Figures 1, 2, and 3 the barrier arm 4 extends across the elongate pole member 3, such that

the weight of the arm 4 is balanced over the top of the pole member 3. The road ending 10 of the barrier

arm 4 extends out into the roadway when the 'STOP' paddle or sign is out at the shaft distal end.

The pavement ending 11 of the barrier arm 4 is dimensioned so that it is long enough for a user to

comfortably grasp and manoeuvre when the barrier arm 4 is rotated outwards onto the roadway. Also, the pavement ending 11 of the barrier arm 4 includes a counterweight 18 at a distal end to provide a neutral balance of the arm 4 over the elongate pole member 3.

A second paddle member or'GO' sign is mounted on the elongate pole extension member 3 to meet

temporary traffic management (TTM) site requirements. For TTM applications, the face of the first

paddle member or 'STOP' sign is mounted substantially perpendicular or at approximately 900to the face

of the second paddle member or 'GO' sign such that, when the barrier arm 4 is in a closed position

kerbside, the second paddle member or 'GO' sign faces the on-coming traffic.

EXAMPLE 2

With reference to Figure 7, the portable barrier arm apparatus 1 is designed to operate as follows. There

are predominately two positions for the barrier arm 4 i.e. inward or outwards.

The base 4 of the portable barrier arm apparatus 1 is positioned on the pavement kerbside with barrier

arm 4 parallel to the road traffic direction in a first position which allows traffic to pass through the

roadway. In this first position, a driver will sight the second paddle member or 'GO' sign which is

mounted on the elongate pole extension member 3. A user stands at point X or Y. In order to stop traffic,

a user unpins the gate latch about the pavement area and rotates the barrier arm 4 900such that barrier

arm 4 provides a physical barrier on to the roadway while exposing the face of the first paddle member

or 'STOP' sign at the shaft distal end to the driver (i.e. second position). The gate latch engages a second

locating hole to retain the barrier arm 4 in an outward position. Simultaneously, the second paddle

member or 'GO' sign which is mounted on the elongate pole extension member 3 perpendicular to the

first paddle member or 'STOP' sign is rotated out of view of the driver.

To allow traffic back through the roadway, the order of operation as described above is reversed such

that the barrier arm 4 is parallel to the road traffic direction in a first position.

EXAMPLE 3

With reference to Figures 8 and 9, an assembled remotely operated portable barrier arm apparatus 1 is

shown in the 'STOP' position (left side of Figures 8 & 9) and 'GO' position respectively (right side of

Figures 8 & 9).

The base 5 is a weatherproof housing or rigid casing that encloses and protects additional componentry

and equipment (not shown) such as electronics, battery, receiver, and motor. The base 5 is of a sufficient

weight to anchor the barrier apparatus 1 and is approximately 30 kgs. As shown, the base 5 includes a

stand 12 with feet member 13 to elevate the base above ground level for additional protection from the

elements.

As above, the battery (not shown) is housed in the base 5 and is a rechargeable lithium-ion battery with at least 14 hours of continuous operation with an output of 1 mW and IP rating between 55-67. A radio control transmitter (not shown) and receiver (not shown) are housed in the base 5 that allows an operator to be located away from traffic. In particular, the radio control transmitter is a Lodar radio transmitting unit with a single press mechanism configured to operate within a temperature range of

20 0C to 55C having a range of 60 - 600 metres with an output of 1 mW and IP rating between 55-67. A

sole operator can manage traffic through the worksite with repeated presses of a single button on the

radio control unit to activate the barrier arm 4.

The receiving unit is a LodarTM 15 amp field-effect transistor (FET) for multiple switching functionality

having a complementary range of 60 -600 metres.

The elongate pole member or mast 3 is a lightweight aluminium tube that links and fixedly retains the

base 5 to the barrier arm 4. The mast 3 includes a 100 mm horizontal T-section for connection of the

barrier arm 4 to the mast 3. The barrier arm 4 is a telescopic hollow aluminium box section with a

flexible sleeve 14 for sliding engagement onto a fixed bracket 15 that is attached to the rotating elongate

pole member 3.

A locking fastener (not shown) comprises a locking pin clip to removably retain the hollow sleeve of the

barrier arm 4 onto the fixed bracket 15.

Also, the elongate pole member or mast 3 is hollow for sliding engagement with a shaft (not shown) of

the actuator/motor (not shown). As above, a locking pin clip is utilised to removably retain the elongate

pole member 3 onto the actuator/motor shaft (not shown) and provide the drive mechanism (not

shown) for axial rotation of the mast 3.

As shown, the second paddle member is a 'GO' sign 16 that is mounted to the elongate pole member 3.

The barrier arm 4 is manufactured out of lightweight aluminium material, such that the weight of the

arm is minimised.

The road ending of the barrier arm 4 extends out into the roadway when the paddle or sign is out and

comprises usual markings along the shaft and standard indicia such as a 'STOP' sign 17 at the shaft distal

end (best seen in left side of Figure 8).

The axial rotation of the elongate pole or mast 3 permits movement of the barrier arm 4 in a horizontal

plane. As noted above, the 'GO' and 'STOP" signs 16,17 or paddles are separate and mounted 90 degrees

out of phase with each other i.e. the face of the first paddle member with indicia 'STOP' 17 is mounted

substantially perpendicular or at approximately 900to the face of the second paddle member with indicia

'GO' 16 such that, when the barrier arm 4 is in a closed or first position kerbside (the arm may be turned

to be aligned with the road edge and may not be visible to on-coming traffic), the second paddle

member with 'GO' indicia faces the on-coming traffic - see right side of Figure 8 . In a second position

(see left side of Figure 8), where the barrier arm 4 is turned out across the road lane which presents the

barrier arm 4 with the 'STOP' sign 17 to the driver, the second paddle member with 'GO' sign 16 is turned edge on to the driver and hence is not visible.

EXAMPLE 4

With reference to Figures 10 and 11, a pair of remotely operated barrier arm apparatus 1 is shown in a

two-way traffic flow situation which are designed to operate as follows:

There are predominately two positions for the barrier arms 4 i.e. inward "GO" (left and right side of

Figures 10 and 11 respectively) and outwards "STOP" (right and left side of Figures 10 and 11

respectively).

With reference to Figure 10, each base 5 of the portable barrier arm apparatus 1 is positioned on the

pavement kerbside with barrier arm 4 parallel to the road traffic direction in a first position which allows

traffic or vehicle (A) on the left lane to pass through the roadway. In this first position, a driver in vehicle

(A) will sight the second paddle member or 'GO' sign 16 which is mounted on the elongate pole

extension member 3 and hence be aware that they can safely pass through the roadway on the left hand

side.

An operator with remote or radio transmitter (not shown) which is in radio communication with the

receiver unit (not shown) housed in the base 5 is at a safe point located away from traffic or vehicles (A)

and (B).

In order to stop traffic or vehicle (B) on the right side lane of the roadway (Figure 8), the operator

presses a single button on the remote or radio transmitter which sends an RF signal to the receiving unit

within the base 5 thereby activating the actuator/motor for axial rotation of the elongate pole member

3. This in turn allows 90 degree rotation of the barrier arm 4 such that barrier arm 4 rotates 90 degrees

in a horizontal plane and provides a physical barrier to vehicle (B) on to the roadway while exposing the

face of the first paddle member or 'STOP' sign 17 at the shaft distal end to the driver (i.e. second

position). Simultaneously, the second paddle member or 'GO' sign 16 which is mounted on the elongate

pole extension member 3 perpendicular to the first paddle member or 'STOP' sign 17 is rotated out of

view of the driver of vehicle (B).

To allow traffic back through the roadway, the order of operation as described above is reversed and the

button on the remote pressed again, such that the barrier arm 4 is parallel to the road traffic direction in

a first position (right side view of Figure 9).

Aspects of portable barrier apparatus for manual traffic control have been described by way of example

only and it should be appreciated that modifications and additions may be made thereto without

departing from the scope of the invention as claimed herein.

Claims (26)

WHAT IS CLAIM IS:

1. A portable barrier arm for manual traffic control comprising:

an elongate pole member having a top end and a bottom end, the top end having at least one

bearing mechanically coupled to the elongate pole member for axial rotation of the pole

member in at least one direction;

the bottom end of the pole base mounted to a base member;

a barrier arm linked to the top end of the elongate pole member via the bearing, and having a

first paddle member at a distal end with indicia thereon;

an elongate pole extension member attached to the barrier arm, and having a second paddle

member with indicia thereon mounted on the elongate pole extension member; and

a locking assembly for selectively locking the barrier arm in and releasing the barrier arm for

rotation from a stationary position,

wherein the barrier arm rotates from a stationary inwards position to an outwards position

across a road lane when the locking assembly is released from the stationary position, and

wherein the first and second paddle members are mounted perpendicular (offset or out of

phase approximately 90 degrees to each other) and the second paddle member is turned edge

on and thus the indicia thereon is not visible to a pedestrian and/or driver of a vehicle on the

roadlane.

2. The portable barrier arm as claimed in claim 1, wherein the base is linked to the bottom end of

the elongate pole via the bearing.

3. The portable barrier arm as claimed in claim 1 or claim 2, wherein the base includes fixing

elements to retain a road cone that is mounted thereon the elongate pole member.

4. The portable barrier arm as claimed in any one of the preceding claims, wherein the base

includes hinged side members.

5. The portable barrier arm as claimed in any one of the preceding claims, wherein the elongate

pole member or mast comprises a steel tube that links and/or fixedly retains the base to the

barrier arm.

6. The portable barrier arm as claimed in any one of the preceding claims, wherein the bearing is

manufactured out of nylon and mounted above a cone top to provide axial rotation of the barrier arm.

7. The portable barrier arm as claimed in any one of the preceding claims, wherein a bottom

bearing is mechanically coupled to a bottom end of the elongate pole member for axial rotation

of the pole member in at least one direction.

8. The portable barrier arm as claimed in any one of the preceding claims, wherein the bearing

includes a sliding cambered face to urge movement of the barrier arm in an inward and

outwards position.

9. The portable barrier arm as claimed in any one of the preceding claims, wherein the locking

assembly comprises a locking pin and a latch.

10. The portable barrier arm as claimed in claim 9, wherein the latch includes a right angle external

ending to allow the pin to be withdrawn from the hole against bias by a user.

11. The portable barrier arm as claimed in any one of the preceding claims, wherein the barrier arm

extends across the elongate pole member or mast, such that the weight of the arm is balanced

over the top of the mast.

12. The portable barrier arm as claimed in any one of the preceding claims, wherein a pavement

ending of the barrier arm includes a counterweight at a distal end thereof.

13. An automated or remotely operated portable barrier arm for manual traffic control comprising:

an elongate pole member having a top end and a bottom end, the elongate pole member being

configured for axial rotation in at least one direction;

a base linked to the bottom end of the elongate pole for housing a motor and electronic

componentry;

a barrier arm having a first paddle member at a distal end with indicia thereon attached to the

elongate pole member;

a second paddle member with indicia thereon mounted to the top end of the elongate pole

member perpendicular (offset or out of phase approximately 90 degrees) relative to the first

paddle member;

wherein the barrier arm rotates from a stationary inwards position to an outwards position

when the barrier arm is automatically or remotely operated such that the barrier arm is turned

out across a road lane and the second paddle member is turned edge on and thus the indicia thereon is not visible to a pedestrian and/or driver of a vehicle on the road lane.

14. The portable barrier arm as claimed in claim 13, wherein the base is a weather proof housing or

rigid casing that encloses and protects additional componentry or equipment.

15. The portable barrier arm as claimed in claim 13 or claim 14, wherein a battery is housed in the

base comprising an in-built rechargeable battery with up to 14 hours of continuous operation.

16. The portable barrier arm as claimed in claims 13 to 15, wherein the portable barrier arm

includes an actuator for moving and controlling the barrier arm.

17. The portable barrier arm as claimed in claim 16, wherein the actuator is an LA12 manufactured

by LinakTM of the type 12XX00-2XXX12XX having a 12V motor, 4 mm spindle pitch, 300 N thrust,

150 N self-lock, speed of 16-27 mm/s, stroke length of 40-130 mm and operating between 1.75

- 2.5 amps.

18. The portable barrier arm as claimed in any one of claims 16 or 17, wherein the actuator includes

a permanent magnetic motor that operates between 12-24 V DC having a gear ratio able to

move the barrier arm and counteract wind resistance during rotation of the barrier arm.

19. The portable barrier arm as claimed in any one of claims 13 to 18, wherein the portable barrier

arm includes electronic circuitry and software program protocols developed by Lodar radio

controls.

20. The portable barrier arm as claimed in any one of claims 13 to 19, wherein the portable barrier

arm includes a remote or radio control transmitter and receiver system that allows an operator

to be located at least 600 metres away from traffic.

21. The portable barrier arm as claimed in claims 19 or 20, wherein the portable barrier arm utilises

a Lodar radio transmitting unit with a single press mechanism configured to operate within a

temperature range of -20 0C to 55 0C with an output of 1 mW and IP rating between 55-67 and

having a range of 60 -600 metres with an external aerial.

22. The portable barrier arm as claimed in any one of claims 13 to 21, wherein a receiving unit is a

Lodar TM 15 amp field-effect transistor (FET) for multiple switching functionality having a

complementary range of 60 - 600 metres.

23. The portable barrier arm as claimed in any one of claims 13 to 22, wherein the portable barrier arm includes a camera system.

24. The portable barrier arm as claimed in any one of the preceding claims, wherein a face of the

first paddle member with indicia 'STOP' is mounted substantially perpendicular or at

approximately 90to a face of the second paddle member with indicia 'GO' such that, when the

barrier arm is in a closed position kerbside, the second paddle member with 'GO' indicia faces

on-coming traffic.

25. The portable barrier arm as claimed in any one of the preceding claims, wherein the portable

barrier arm is telescopic.

26. A portable barrier apparatus as substantially herein before described and with reference to the

accompanying Figures 1 to 11.

18

FIGURE 1

18

FIGURE 2

1/6

18

FIGURE 3

FIGURE 4

2/6