FR2406860A1 - Crossroads traffic warning system - uses pneumatic road surfaces tubes to actuate triangular warning signs - Google Patents
Crossroads traffic warning system - uses pneumatic road surfaces tubes to actuate triangular warning signsInfo
- Publication number
- FR2406860A1 FR2406860A1 FR7731723A FR7731723A FR2406860A1 FR 2406860 A1 FR2406860 A1 FR 2406860A1 FR 7731723 A FR7731723 A FR 7731723A FR 7731723 A FR7731723 A FR 7731723A FR 2406860 A1 FR2406860 A1 FR 2406860A1
- Authority
- FR
- France
- Prior art keywords
- tubes
- actuate
- road surfaces
- signs
- triangular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/164—Centralised systems, e.g. external to vehicles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Audible And Visible Signals (AREA)
Abstract
The traffic warning system is installed at the intersection of two roads. Therefore, four pneumatic tubes mounted in the road surface. One of the tubes is fitted in each section of road. Four pneumatic contactors associated with the tubes are connected by cable to an automatic control system contained in four roadside cabinets. At the crossroads are fixed four triangular illuminated road signs indicating 'Danger Collision'. Vehicles passing over the pneumatic tubes actuate display of the warning signs.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7731723A FR2406860A1 (en) | 1977-10-21 | 1977-10-21 | Crossroads traffic warning system - uses pneumatic road surfaces tubes to actuate triangular warning signs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7731723A FR2406860A1 (en) | 1977-10-21 | 1977-10-21 | Crossroads traffic warning system - uses pneumatic road surfaces tubes to actuate triangular warning signs |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2406860A1 true FR2406860A1 (en) | 1979-05-18 |
FR2406860B1 FR2406860B1 (en) | 1981-05-08 |
Family
ID=9196798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7731723A Granted FR2406860A1 (en) | 1977-10-21 | 1977-10-21 | Crossroads traffic warning system - uses pneumatic road surfaces tubes to actuate triangular warning signs |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2406860A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2494537A1 (en) * | 1980-11-18 | 1982-05-21 | Metrich Et Joseph | Solar powered intermittently lit road sign - has battery storing electricity produced during daylight for use when vehicle is detected |
FR2562694A1 (en) * | 1984-04-04 | 1985-10-11 | Rambaud Guy | Device for assisting vehicle driving |
EP1452831A1 (en) * | 2003-02-26 | 2004-09-01 | Director General of National Institute for Land and Infrastructure Management, Ministry of Land, Infrastructure and Transport | Security method for vehicle safe driving support system |
US6922136B2 (en) | 2003-01-27 | 2005-07-26 | National Institute For Land And Infrastructure Management, Ministry Of Land, Infrastructure And Transport | Security method for vehicle safe driving support system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1264304A (en) * | 1960-08-01 | 1961-06-19 | Automatic signaling system for curves and road crossings | |
FR2036472A5 (en) * | 1969-03-14 | 1970-12-24 | Boucheron Pierre |
-
1977
- 1977-10-21 FR FR7731723A patent/FR2406860A1/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1264304A (en) * | 1960-08-01 | 1961-06-19 | Automatic signaling system for curves and road crossings | |
FR2036472A5 (en) * | 1969-03-14 | 1970-12-24 | Boucheron Pierre |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2494537A1 (en) * | 1980-11-18 | 1982-05-21 | Metrich Et Joseph | Solar powered intermittently lit road sign - has battery storing electricity produced during daylight for use when vehicle is detected |
FR2562694A1 (en) * | 1984-04-04 | 1985-10-11 | Rambaud Guy | Device for assisting vehicle driving |
US6922136B2 (en) | 2003-01-27 | 2005-07-26 | National Institute For Land And Infrastructure Management, Ministry Of Land, Infrastructure And Transport | Security method for vehicle safe driving support system |
EP1452831A1 (en) * | 2003-02-26 | 2004-09-01 | Director General of National Institute for Land and Infrastructure Management, Ministry of Land, Infrastructure and Transport | Security method for vehicle safe driving support system |
Also Published As
Publication number | Publication date |
---|---|
FR2406860B1 (en) | 1981-05-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse | ||
AR | Application made for restoration | ||
BR | Restoration of rights | ||
ST | Notification of lapse |