Emergency braking system
Introduction
A truck emergency ramp, truck escape route, escape path, emergency escape ramp or stopping surface, is an element of highways that allows vehicles that are
suffering from problems with the braking system can stop with
security. Normally, these are long roads parallel and adjacent to
the main roads, especially in steeply descending sections and
prolonged, and usually have some physical separation through barriers of
concrete or bollards, covered with a thick layer of sand or gravel,
large enough to protect a large truck
dimensions. The great depth of the gravel manages to dissipate the inertia of the vehicles in a quick, controlled and relatively
harmless, allowing the driver to stop his vehicle safely.
Design
Emergency escape ramps are typically located in mountainous areas causing high construction costs and difficult site selection.[1] Designs include:.
Location
Emergency escape ramps are typically located on very steep slopes, such as in mountainous areas. When descending for long periods of time, slopes allow vehicles to reach high speeds, and truck brakes can overheat and fail from excessive use. Ramps are often constructed before a critical change in road curvature, or before a location that may require the vehicle to stop, such as before an intersection in a populated area.[2]
Still, these may vary from one country/region to another.
References
- [1] ↑ a b DOT Arizona (May–June 1993). «Full-Scale Arrester Bed Testing Leads to More Cost-Effective Design» (pdf). TR News (166): 20-21. Consultado el 23 de julio de 2006.: http://www.trb.org/publications/trnews/rpo/rpo.trn166.pdf
- [2] ↑ a b c Design Manual - Auxiliary Lanes (pdf). Washington State Department of Transportation. May 2006. Chapter 1010, pp. 4-5. Archivado desde el original el 24 de septiembre de 2005. Consultado el 1 de marzo de 2016.: https://web.archive.org/web/20050924192440/http://wsdot.wa.gov/EESC/Design/DesignManual/desEnglish/1010-E.pdf
- [3] ↑ «highway11northbay.com». highway11northbay.com. Archivado desde el original el 6 de mayo de 2012.: https://web.archive.org/web/20120506072004/http://www.highway11northbay.com/
- [4] ↑ «Copia archivada». Archivado desde el original el 5 de septiembre de 2011. Consultado el 17 de diciembre de 2011.: https://web.archive.org/web/20110905164049/http://www.4ishgd.valencia.upv.es/index_archivos/81.pdf