Typical Mountainous Area Road Safety Design Theory Research Based On Vehicle-road Coupling Safety Driving Mechanism

Acceleration of the process of developing the western region of our country madeus face an increasing number of mountain road. In order to overcome the heightdifference of the mountainous terrain, it is inevitable that there will be a large number ofcombinations of continuous longitudinal slopes and bending slope roads. when vehiclestraveling in these sections, the drivers had to prolonged braking in order to control thespeed, so the calories of brake friction lining continue to accumulate, and thetemperature is rising, thus making the brake produce "hot recession and lead to brakefailure, causing he occurrence of major accidents. So the road alignment design,especially the longitudinal linear design and security engineering solutions is particularimportant for this issueThrough the analysis on the measured data on investigations, and the real vehicletesting in typical road of Chongqing and the surrounding mountains and then do thevehicle in the mountain descent analysis, the combination of curved road runningmechanics analysis, energy analysis, as well as the brake temperature law analysis,based on the carriageway coupling theory brake failure and lateral instability of thesecurity model, and its safety threshold calibration, safety threshold as the critical valueof anti-calculate the vehicle at different speeds and different slope, different stalls ofsafe driving corresponding to the maximum safe slope length, put forward therecommended values of key parameters of the typical mountain sections of linear design,mechanical analysis based on the carriageway on the coupling mechanism, a typicalsection of the security technology research and design of security engineering solutionsfor a variety of typical sectionsBased on road-vehicle coupling safety driving mechanism security model can notonly provide theoretical reference for the mountain road design, but can also provide atheoretical support for the development of the mountain road vehicle safety warning,ensure the traffic safety of mountainous area has certain practical significance...