Beijing Highroad Engineering Technology Co.

Beijing, China

Beijing Highroad Engineering Technology Co.

Beijing, China

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Li H.-O.,Beijing Highroad Engineering Technology Co. | Liu H.-Y.,Beijing Highroad Engineering Technology Co. | Li G.-Y.,Beijing Highroad Engineering Technology Co.
Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology | Year: 2012

Three-phase intersection capacity calculation method was studied. Based on the stop-line method, the calculation method for the right-turn lane was improved, as well as the left-turn and straight-turn line while there is no dedicated signal phase for left-turn. Further, the improved model was proposed to calculate the three-phase intersection capacity. Then, using the data of the actual intersection, the capacity of the junction was calculated based on the stop-line method and the improved model, respectively. The results show that the improved model can effectively improve the stop-line method's deficiencies at calculating the three-phase intersection capacity. The calculation results are closer to the measured data, and are not affected by the actual survey data.


Liu H.-Y.,Beijing Highroad Engineering Technology Co. | Li H.-O.,Beijing Highroad Engineering Technology Co. | Zhu N.,Beijing Highroad Engineering Technology Co.
Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology | Year: 2012

In order to meet the needs of both bus enterprise and passengers for reasonable allocation of resources, the passenger flow OD matrix is calculated on the basis of the survey data. At the same time, passenger flow OD matrix of the two vehicle scheduling is got by the determined express bus stops. Then bus scheduling mathematical model is established, which contains the express bus and the full dispatching schematic. Sensitivity analysis of the model is achieved by the selected elements such as the average speed, the number of bus used, the times of bus stops, operating costs. The conclusion indicates that the combinational scheduling can reach the needs of passengers and reduce 25% of the enterprise operation cost.

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