Safety Fault-tolerance Capacity Promotion Technology Of Expressways Weaving Areas And Maintenance Operating Areas

In recent years, mountain freeway weaving area and maintenance work zone is the accident-prone area, which brought huge threat to the people upon the safety of life and property, mainly due to the complex structure, traffic operation disorder and the poor inclusive of the driver’s in the mountain freeway weaving area and maintenance work zone, that is, low security fault tolerance. Therefore this paper is of great significance to enhance secure fault-tolerant technology of mountain freeway weaving area and maintenance work zone. In this paper, weaving area in Zhongxian Expressway and maintenance work in Changshou Expressway are as for the actual engineering background, using literature data and traffic survey method and combining application traffic conflict technology, redundancy and fault tolerance theory enhance secure fault-tolerant technology of mountain freeway weaving area and maintenance work zone. aiming at through the study of the theory and design of fault-tolerant approach to enhance secure fault-tolerant technology of mountain freeway weaving area and maintenance work zone and to reduce economic losses caused by traffic accidents, and realizing the system of people-vehicle-road-environmental development well, mainly achieved the following findings;(1) This paper analysis the traffic operation characteristics of weaving area and maintenance work from the driver’s traffic characteristics, traffic operation characteristics and road characteristics et al three aspects. Handling information characteristics of the driver is the source of mistakes, course of action is the key to safe driving; control the speed of the vehicle between the difference may improve traffic safety operation, reasonable traffic channelization measures to reduce traffic conflicts; mountain freeway weaving area, road maintenance work characteristics and plains region has different characteristics.(2)This paper analysis the traffic conflicts factors of the Weaving area and the Maintenance work zone from the vehicle traffic flow, traffic composition and other factors et al four aspects. using traffic conflict techniques, depending on the traffic conflict angle, traffic conflict types of the weaving area are divided into six categories, types of traffic conflict of maintenance work zone is divided into five categories. In the future we can be targeted for different traffic conflict types of weaving area and maintenance work zone to design traffic safety facilities, both to give full play to the role of traffic safety facilities, but also cost savings(3) In this paper, the principles of safe fault-tolerant, meaning and methods of the three aspects of safety fault tolerance analysis, focusing on the basic method of fault-tolerant; bold vision to optical illusion deceleration zone, preformed marking, vibrating belt, simulation models, interval The new speed limit and other traffic safety facilities used in engineering practice; first proposed the concept of three-dimensional color optical illusion slowdown Ridge, and its characteristics were analyzed in detail, the proposed optical illusion slowdown Ridge and marking with the use of vibration reducer; application traffic channelization The method of weaving area to transform optimized to reduce traffic conflicts and achieve the purpose of security tolerant; Combined an engineering example of Zhongxian Expressway and maintenance work in Changshou Expressway, proposed mountain freeway weaving area and maintenance work zone safe fault-tolerant integrated design examples, for future engineering practice mountain freeway weaving area and maintenance work zone fault-tolerant facility security arrangement to provide a reference.