City Occupancy and Road Capacity Model

Abstract:

In this paper, we study the impact of city driveway occupancy on the urban road traffic capacity. Through the analysis of the scene of an accident case, we gained the vehicle statistics within a cross section in unit time and then did calculation and simulation. The work is concluded as a reasonable model of vehicle queue relationship evaluation.First, on the base of the definition of traffic capacity, statistics of the cars in the cross section before the accident, during the accident and after the accident have been respectively acquired in unit time (1 min). Then we employ Matlab to do the interpolation fitting, drawing the change of actual capacity of the road from the beginning time of an accident to the time when traffic resumes. The work comes to a conclusion that the change of the capacity at the cross section has a pattern of periodic fluctuation.

• Periodical: Advanced Materials Research (Volumes 1044-1045)
• Pages: 1538-1540
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1044-1045.1538
• Online since: October 2014
• Authors: Yi Lin Fan, Bei Chen Cheng*, Li Li Cao, Kun Cheng Huang
• Keywords: Actual Road Capacity, Information Processing, MATLAB, PCU, Traffic Stream

References

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[2] Code for design of urban road engineering CJJ37-2012 (China Architecture & building press, China 2012).

[3] Daniel L. Gerlough, Traffic Flow Theory, TRB, Special Report No. 165, Transportation Research Board,　National Research Council, Washington D.C., (1975).