CN103761872A - Method for analyzing overall service level of pedestrian overpass and platform of BRT station - Google Patents
Method for analyzing overall service level of pedestrian overpass and platform of BRT station Download PDFInfo
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- CN103761872A CN103761872A CN201410032889.1A CN201410032889A CN103761872A CN 103761872 A CN103761872 A CN 103761872A CN 201410032889 A CN201410032889 A CN 201410032889A CN 103761872 A CN103761872 A CN 103761872A
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Abstract
The invention discloses a method for analyzing the overall service level of a pedestrian overpass and a platform of a BRT station. The method comprises the following steps: step 1, basic information of the pedestrian overpass and the platform of the BRT station is acquired, wherein the basic information comprises road section types and the total width, length, gradient and barriers of each road section; step 2, the pedestrian overpass and the platform of the target BRT station are divided into basic road sections, and the basic road sections are used as analysis units; step 3, analysis parameters of the basic road sections are calculated; step 4, the service level of the basic road sections is determined; step 5, bottleneck road sections are determined according to the service level of the basic road sections; step 6, the overall service level of the pedestrian overpass and the platform of the target BRT station is determined. The method provides a quantification basis for the analysis and improvement on the overall service level of the pedestrian overpass and the platform of the target BRT station.
Description
Technical field
The present invention relates to field of traffic control, be specifically related to the analytical approach of a kind of BRT station overpass and platform integrity service level.
Background technology
BRT station overpass and platform integrity service level refer to the service level that in BRT station, overpass and all sections of platform integral body embody, i.e. BRT station overpass and platform integrity service level.
In BRT station, overpass and platform integrity service level are the comprehensive embodiments of BRT station service ability and level, it is carried out to scientific and reasonable analysis and evaluation BRT operating administration is understood to BRT station operation situation, improve BRT station operation integrity service level, improve user satisfaction, avoid producing the crowded and tread event of pedestrian etc. in peak period and have very large meaning, but at present, in China BRT operation management, lack corresponding method BRT station overpass and platform integrity service level are carried out to science, quantitatively and the analysis of system.
Most research is all only carried out the analysis of service level aspect for single pedestrian facility as overline bridge, stair, waiting station platform, walkway etc., not yet finds enter the station overpass and platform of BRT regarded as to an integral body and carried out service level and analyze document description.
Summary of the invention
In order to overcome the shortcoming and deficiency of prior art existence, the invention provides the analytical approach of BRT station overpass and platform integrity service level.
The present invention adopts following technical scheme:
An analytical approach for BRT station overpass and platform integrity service level, comprises the steps:
S1 is obtained the basic document of target BRT station overpass and platform by electronic chart or plane design drawing, described basic document comprises road segment classification, overall width, length, the gradient and barrier, and wherein barrier width is with reference to the relevant regulations of the 18th chapter in U.S. < < HCM > > 2000; Walkway and the platform fringing in district: the 0.5m that waits; Overpass lateral rail: 0.5m; Bushes: 0.7m; Side building wall: 0.5m; Trees: 0.2m
S2, according to road segment classification, carries out basic road division to target BRT station overpass and platform, and usings basic road as analytic unit;
Described road segment classification comprises horizontal sidewalk, stair, walkway, ramp, booking district and the platform district that waits of entering the station.
S3 calculates the analytical parameters of basic road, and described analytical parameters comprises the effective width on walkway, space, pedestrian unit's flow rate, pedestrian's Flow Velocity, V/C compare and the booking residence time per capita;
The effective width on described walkway refers to the part that in Route for pedestrians, pedestrian can effectively utilize.
The computing formula of walkway effective width is as follows:
W
E=W
T-W
O
In formula:
W
e-walkway effective width (m),
W
t-walkway overall width (m),
W
o-barrier width with pass round obstacle distance sum (m).
The described flow rate Vp of pedestrian unit (people/min/m):
Vp=V
15/(15*W
E)
Wherein, V
p-pedestrian unit flow rate (people/min/m); V
15the 15 minutes flow rates (people/15min) in-peak; W
e-walkway effective width (m).
Described pedestrian's Flow Velocity S:
Integrity service level to built BRT station overpass and platform is analyzed, and the concrete numerical value of pedestrian's Flow Velocity S can calculate sample average according to field observation and obtain:
S=(∑Si)/n
Wherein, Si is i sample walking speed (m/s); N is sample size.
Integrity service level to the BRT station overpass in planning and design and platform is analyzed, can be according to the recommendation in < < HCM > >: " pedestrian walking speed is depended on pedestrian the elderly's (higher than 65 years old) ratio.If 0%～20% pedestrian is the elderly, while calculating walkway, pedestrian walking speed can adopt 1.2 meter per seconds; If the pedestrian over 20% is the elderly, pedestrian walking speed can adopt 1 meter per second.In addition, when the gradient surpasses 3%, the every increase by 10% of the gradient, walking speed reduces by 0.1 meter per second.”
The described pace of space S per capita (m
2/ p):
Space=1/k
k=60*Vp/S
Wherein: k is pedestrian's current density, p/m
2; VpWei pedestrian unit flow rate, people/min/m; S is pedestrian's stream
Speed, m/s.
Described V/C ratio:
Suppose that the walkway traffic capacity is C=75 people/min/m, V/C is:
V/C=Vp/75; VpWei pedestrian unit flow rate wherein.
The booking residence time:
The booking residence time refers to that passenger enters the station the time that district finishes to booking from entering booking, can directly add up 15 minutes passenger's average booking residence time during high passenger flow, that is: to built BRT station
Tw=∑(TOi-TIi)/n (7)
In formula, TOi is i the moment that passenger completes booking, and TIi is the moment that i passenger enters booking district, and n is sample size.
As target BRT station, not yet build up, also can adopt the method for waiting line theory, regard the booking district of entering the station as N M/M/1 queuing system, Tw is the booking residence time:
Tw=(∑Twi)/N (8)
Twi=1/(μi-λi) (9)
In formula, Twi is the residence time of i booking mouth, N is that booking is counted out, the average passenger flow number that arrives booking mouth i in the λ i representation unit time, the complete average passenger flow number that leaves booking mouth i of booking service in the μ i representation unit time, and μ i> λ i is that queuing system keeps stable prerequisite.
S4 determines the service level of basic road, is specially: the service level LOS of basic road divides leading indicator for spatial parameter Space per capita, is aided with pedestrian flow rate, walking speed and saturation degree V/C, take the poorest LOS as net result.
The level of service division standard of all types of basic roads is as follows respectively:
When basic road is two-dimensional person trade, service level is divided according to following standard:
Two-dimensional person trade level of service division standard
In above table, "-" represents that data are uncertain.
When basic road type is stair, service level is divided according to following standard:
Stair level of service division standard
In above table, "-" represents that data are uncertain.
Level Walking speed S wherein
hfor
S
H=L
H/t
In formula, be Level Walking speed, the m/s of unit; L
hfor stair horizontal range, the m of unit; T is the average walking time of observation sample.
Walkway, described ramp, the gradient in described ramp is greater than ± and 3%;
The level of service division standard of ramp basic road is identical with two-dimensional person trade, and just size and the climb and fall of the gradient can affect walking speed S, thereby the parameters such as pedestrian space, pedestrian flow rate, saturation degree V/C are changed, thereby may affect LOS level.
The platform district that waits:
The BRT station platform district's level of service division standard of waiting is as follows:
The booking district of entering the station:
The booking district's level of service division standard that enters the station in BRT station is as follows:
S5 is then according to the service level LOS of above-mentioned each definite type basic road, and the elementary basic road j of service level is bottleneck road, more than one of described bottleneck road possibility.
S6 determines target BRT station overpass and platform integrity service level;
LOS
W=LOSj
Wherein, the service level that LOSj is bottleneck road.
Because BRT station overpass and platform pedestrian stream are continuous, therefore improve BRT station overpass and the horizontal LOS of platform integrity service
weffective measures are exactly the service level LOSj that improves bottleneck road.
The present invention carries out quantitative analysis to BRT station overpass and platform integrity service level, determines the service level of bottleneck road, finally determines BRT station overpass and platform integrity service level.
Beneficial effect of the present invention:
The present invention can analyze built BRT station overpass and platform, also can analyze BRT station overpass and platform in design; And method is simple, the integrity service level of application the method Ke Dui China BRT station overpass and platform is analyzed, and carries out specific aim improvement accordingly, so the present invention has very large actual promotional value.
Accompanying drawing explanation
Fig. 1 is workflow diagram of the present invention;
Fig. 2 is the division schematic diagram of basic road in the specific embodiment of the invention;
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment
It is example that the present embodiment be take Guangzhou BRTMou station overpass and platform, obtains the analytical approach of this station overpass and platform integrity service level, comprise the steps: as shown in Figure 1,
S1 obtains the basic document of BRT station overpass and platform;
S2 carries out basic road division to target BRT station overpass and platform, and take basic road as analytic unit, as shown in Figure 2;
S3 calculates the analytical parameters of basic road, and described analytical parameters comprises the effective width on walkway, space, pedestrian unit's flow rate, pedestrian's Flow Velocity, V/C compare and the booking residence time per capita, table specific as follows;
The analytical parameters value of each basic road is as shown in the table:
Note: section 1 and 4 is the booking district of entering the station, and its level of service division standard only relies on booking residence time parameter; Section 2 and 3 is platform, and its level of service division standard only relies on one, space parameter per capita.
S4 is then according to the service level in each analytical parameters value and each rank section of level of service division standard, as shown in the table.
| Basic road | Service level LOS | Basic road | Service level LOS |
| 1 | C | 7 | C |
| 2 | B | 8 | C |
| 3 | D | 9 | C |
| 4 | C | 10 | C |
| 5 | F | 11 | B |
| 6 | C |
S5 determines by upper table the basic road 5 that service level is minimum, and its service level is F, and stair section 5 is the bottleneck road at BRTMou station, Guangzhou.
S6 is finally according to the service level of bottleneck road, and the integrity service level that can determine Guangzhou BRTMou station overpass and platform is F.Show this BRT station overpass of Guangzhou and platform integrity service level error, service level urgently promotes, and the bottleneck road 5 that first will improve, its integrity service level just can be brought up to D grade; If further improve basic road 3, this BRT station overpass and platform integrity service level can be brought up to C grade.
Basic road level of service division standard of the present invention is mainly with reference to U.S. < < HCM > >.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not limited by the examples; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (3)
1. an analytical approach for BRT station overpass and platform integrity service level, is characterized in that, comprises the steps:
S1 obtains the basic document of BRT station overpass and platform, and described basic document comprises overall width, length, the gradient and the barrier in road segment classification and each section;
S2, according to road segment classification, carries out basic road division to target BRT station overpass and platform, and usings basic road as analytic unit;
S3 calculates the analytical parameters of basic road, and described analytical parameters comprises walkway effective width, space, pedestrian unit's flow rate, pedestrian's Flow Velocity, V/C compare and the booking residence time per capita;
S4 determines the service level of basic road;
S5, according to the service level of basic road, determines bottleneck road;
S6 determines target BRT station overpass and platform integrity service level.
2. determination methods according to claim 1, is characterized in that, in described S2, road segment classification comprises horizontal sidewalk, stair, walkway, ramp, booking district and the platform district that waits of entering the station.
3. determination methods according to claim 1, is characterized in that, described bottleneck road is specially the basic road of service level the lowest class.
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2014
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| US20060196385A1 (en) * | 2005-03-07 | 2006-09-07 | Stromberg Ronald E | Elevated bus rapid transit system |
| JP2008015612A (en) * | 2006-07-03 | 2008-01-24 | Hitachi Ltd | Regular-route bus operation management system, regular-route bus operation management method, regular-route bus operation management program |
| CN101751788A (en) * | 2009-12-31 | 2010-06-23 | 浙江工业大学 | Public transit exclusive lane resource sharing method and system for guaranteeing bus rapid transit priority |
| CN102071605A (en) * | 2010-11-02 | 2011-05-25 | 王玉爽 | Urban seamed-joint monorail mass transit system |
| CN102074114A (en) * | 2011-01-18 | 2011-05-25 | 山东大学 | Device and method for controlling speed of BRT (bus rapid transit) |
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| CN103085898A (en) * | 2013-02-01 | 2013-05-08 | 吉林大学 | Middle wheel steering articulated brotherhood of railroad trainmen (BRT) bus |
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