PLA Beijing Military Area

Beijing, China

PLA Beijing Military Area

Beijing, China
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Xu Q.,Beijing Jiaotong University | Yang J.,Transportation Institute | Peng F.,Beijing Jiaotong University | Zhou R.,Beijing Jiaotong University | Gao L.-P.,PLA Beijing Military Area
Jiaotong Yunshu Xitong Gongcheng Yu Xinxi/Journal of Transportation Systems Engineering and Information Technology | Year: 2011

The interference between the buses and non-motorized vehicles while the buses are going into or coming out of bus stops has an important effect on the operations of traffic systems. Focusing on the mixed traffic flows consisting of buses and non-motorized vehicles at 3 types of bus stops when buses are going into or coming out of the bus stops, this study analyzes the interference between buses and non-motorized vehicles, and the types of delays. By following the principle of maximizing the utilities of both public and private transports, a mixed traffic delay-based model for the assessment of configuration selection of bus stops has been established to get average delays per person and PCU. By taking advantages of the VISSIM software, three kinds of bus stops have been studied in simulation. The results show that mixed traffic system delay presents different growth trends with the increases of vehicles' volumes. The case study shows that the proposed delay model can be applied to select the suitable types of bus stops with different volumes of various vehicles.


Xu Q.,Beijing Jiaotong University | Zhang Z.,Beijing Jiaotong University | Chen S.-K.,Beijing Jiaotong University | Gao L.-P.,PLA Beijing Military Area
Journal of Beijing Institute of Technology (English Edition) | Year: 2011

The microscopic traffic simulation approach was presented to investigate the performances of mixed traffic flow caused by different bus stop designs. Based on different types of bus stop designs, which include curbside, bus bay and bicycle-lane bypass designs, mixed traffic system was identified. Then, the mixed traffic delay model was proposed to calculate mixed traffic system delay (MTSD). Subsequently, the microscopic traffic simulation was executed, by which the MTSD was computed and a comparison of the effects of bus stop designs was presented. The results show that the relationship between MTSD and through mixed traffic volumes varies significantly when traffic volume is beyond a threshold value. Further, the flow level corresponding to the increase rate of MTSD occurrence would be an appropriate threshold value for selecting the better balance design under given conditions. © Copyright.


Zhang Z.-Y.,Beijing Jiaotong University | Mao B.-H.,Beijing Jiaotong University | Liang X.,Beijing Jiaotong University | Gao L.-P.,PLA Beijing Military Area
Journal of Beijing Institute of Technology (English Edition) | Year: 2011

Train traction calculation is applied into station-front turn-back capacity of urban rail transit. In the beginning, categories and operation progress of station-front turn-back were described and analyzed. Then, the minimal departure interval calculation formula of single track turn-back and double track turn-back was obtained. Based on these, the reasonable turn-back track number is suggested when the throat area cannot operate parallel. Then, the kinetic equation under the conditions of traction, coasting and breaking was proposed. Finally, the case study of subway station Wuluju in Beijing shows that the minimal departure interval of station-front turn-back of DKZ4 train was operated under energy-saving mode and time-saving mode: 121.4 s and 120.7 s using one turn-back track, 94.1 s and 93.5 s using two turn-back tracks. Compared with the time using average acceleration and deceleration, the values of leaving traction time and leaving traction distance are greater, which shows that the using of average acceleration and deceleration when the train leaving station will bring some error. © Copyright.


Feng J.,Beijing Jiaotong University | Xu Q.,Beijing Jiaotong University | Gao L.-P.,PLA Beijing Military Area | Feng X.-J.,Beijing Jiaotong University | Mao B.-H.,Beijing Jiaotong University
Journal of Beijing Institute of Technology (English Edition) | Year: 2011

Civil motor vehicle energy consumption is used to realize the contribution to urban traffic energy consumption. In this paper, statistical scale of civil motor vehicles classification is analysised, based on mass statistics data, the energy consumption estimation model of civil motor vehicles is built and it is taken an example in Beijing to illustrate the model's validity. The calculation results state that the more careful classification of vehicle, the energy consumption value calculation results more accurate, the total energy consumption of Beijing motor vehicles has been reached 1106.5910 thousand tons of coal equivalent in 2009, and the part of civilian vehicles consumed accounted for more than nine-tenths, and the energy consumption has been large enough to consider energy saving through changing the structure of trip, developing energy-saving vehicles. © Copyright.


Gao L.-P.,PLA Beijing Military Area | Fu C.-J.,PLA Beijing Military Area | He H.-J.,PLA Beijing Military Area | Chen S.-K.,Beijing Jiaotong University
Jiaotong Yunshu Xitong Gongcheng Yu Xinxi/Journal of Transportation Systems Engineering and Information Technology | Year: 2011

Types of pedestrian crossings play important roles in urban traffic, because they bring different conflicts and delays between pedestrians and vehicles. Based on the characteristics and the conflicts of pedestrians and vehicles at signalized road, four behavior rules are established. The inference processes of conflicts and delay between pedestrians and vehicles under different situations of pedestrian crossings are described, the delay model of ped-veh system is developed based on pedestrian crossings. Finally, with the VISSIM software, a simulation case of once and twice pedestrian crossings is studied by an 8-lane road in Beijing. The simulation results show that the twice pedestrian crossing could reduce the average relay of pedestrians and vehicles.

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