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Association of Signal-Controlled Method at Roundabout and Stop Rate

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2 Author(s)
Yu Bai ; Dept. of Road & Traffic Eng., Tongji Univ., Shanghai, China ; Kun Xue

Since the fact that the non-signal roundabout allows less flow rate, and with the increasing of roundabout flow rate, series of problems have occurred in respect of traffic jam, rising of accident rate, growth of traffic delay and increasing of saturation degree, etc. Arrangement of signal control help to enhance the efficiency at roundabout and security, but there exist big difference for applicable conditions and traffic efficiencies under different signal control methods. The main concern of this text, on the foundation of Left-turn with Two-stop Control Method at Roundabout, with consideration of the number of different entrance paths and on the basis of signal control theory and optimal method, is on the three control methods related with “Control of In-turn Discharge Clockwise at Signal-entrance Path”, “Control of In-turn Discharge Clockwise at Signal-entrance Path + Interlace of Minor Flow” and “Association Roundabout Control at Multi-entrance Path”. It is on such a basis that the methods analyzing the effect rule on stop rate coming from the signal cycle and space strategy parameters and radius of island under different signal control methods by applying approaches of numerical calculation and experimental traffic engineering. The research achievement will perfect the theory system for signal control roundabout and provide technical support for the reconstruction of uncontrolled roundabout as well as selection of signal control method of roundabout, meaning significant application value.

Published in:

Intelligent Systems (GCIS), 2010 Second WRI Global Congress on  (Volume:3 )

Date of Conference:

16-17 Dec. 2010