Laboratory Evaluation of Intrusion Detection Technologies for High-Speed Rail Grade Crossings

2004 ◽  
Vol 1862 (1) ◽  
pp. 119-126
Author(s):  
J. R. Zaworski ◽  
K. M. Hunter-Zaworski
Author(s):  
Ron Blacketer ◽  
J. R. Zaworski ◽  
K. M. Hunter-Zaworski

High-speed passenger rail is becoming a more common form of mass transit. A concern when high-speed rail systems are implemented is the provision of intrusion detection at rail crossings. High-speed rail equipment is lighter and faster than traditional rail equipment, and even small objects can damage or derail it. The goal of this project was to field-test two intrusion detection technologies–-a video detection system and a microwave detection system–-and determine whether they could effectively be used for intrusion detection at rail crossings. The tests used objects of varying size, color, and material composition to serve as intruders. The detection systems used were chosen as a result of several previously performed laboratory studies that suggested that both systems, though designed to detect automobiles and pedestrians, could meet the specified requirements. Field testing, however, showed that the performance level of both systems was lower than expected. Therefore, the conclusion was drawn that the technologies would require much testing and refinement before either could be implemented as a stand-alone rail crossing intrusion detection system. This report describes the field testing that was done to evaluate these systems. It includes a description of the detection systems, the test methods and results, and conclusions about the viability of these technologies for this particular application.


Author(s):  
Fred Coleman ◽  
oung J. Moon

A design methodology for gate delay and gate interval time for at-grade crossings using four-quadrant gates is developed. The design approach is based on the concept of dilemma zones related to signal change intervals at signalized intersections. The design approach is validated based on data from six sites in Illinois on a proposed high-speed rail corridor. Gate delay and gate interval times are determined that provide an optimal safe decision point to allow a driver to stop before the crossing or to proceed through the crossing without becoming trapped by the exit gates.


Author(s):  
Adrian Hellman ◽  
Tashi Ngamdung

The United States Department of Transportation’s (USDOT) Research and Innovative Technology Administration’s John A. Volpe National Transportation Systems Center (Volpe Center), under the direction of the USDOT Federal Railroad Administration (FRA) Office of Research and Development (ORD), conducted a reliability analysis of the four-quadrant gate/vehicle detection equipment installed on the potential high-speed rail (HSR) corridor between Chicago and St Louis. A total of 69 highway-rail grade crossings on a 121-mile (195 km) segment of the 280-mile corridor were equipped with four-quadrant gates and inductive loop vehicle detection technology. This segment, between Mazonia and Springfield Illinois, may eventually carry passenger trains at speeds up to 110 mph (177 km/h), including at many of the highway-rail grade crossings. The analysis was based on maintenance records obtained from the Union Pacific Railroad (UPRR), the owner and operator of the rail line. The results were used to assess the impact of the equipment reliability on the proposed HSR timetable. The Volpe Center study showed that the total average delay to the five scheduled daily high-speed passenger roundtrips was an estimated 10.5 minutes, or approximately one minute per train. Overall, extensive analysis of the trouble ticket data showed that the four-quadrant gate and vehicle detection equipment had a minimal direct impact on the frequency and duration of grade crossing malfunctions.


CICTP 2020 ◽  
2020 ◽  
Author(s):  
Jing Shi ◽  
Qiyuan Peng ◽  
Ling Liu

2018 ◽  
Vol 8 (3) ◽  
pp. 515-530
Author(s):  
Massimo Zucchetti1,2 ◽  
◽  
Keyword(s):  

2019 ◽  
Author(s):  
Valentina Bracaglia ◽  
Tiziana D'Alfonso ◽  
Alberto Nastasi ◽  
Dian Sheng ◽  
Yulai Wan ◽  
...  

2020 ◽  
Vol 46 (3) ◽  
pp. 379-397
Author(s):  
Chunyang Wang

This paper measures the spatial evolution of urban agglomerations to understand be er the impact of high-speed rail (HSR) construction, based on panel data from fi ve major urban agglomerations in China for the period 2004–2015. It is found that there are signi ficant regional diff erences of HSR impacts. The construction of HSR has promoted population and economic diff usion in two advanced urban agglomerations, namely the Yang e River Delta and Pearl River Delta, while promoting population and economic concentration in two relatively less advanced urban agglomerations, e.g. the middle reaches of the Yang e River and Chengdu–Chongqing. In terms of city size, HSR promotes the economic proliferation of large cities and the economic concentration of small and medium-sized cities along its routes. HSR networking has provided a new impetus for restructuring urban spatial systems. Every region should optimize the industrial division with strategic functions of urban agglomeration according to local conditions and accelerate the construction of inter-city intra-regional transport network to maximize the eff ects of high-speed rail across a large regional territory.


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