DEVELOPMENT OF DESIGN AND TRAFFIC CONTROL FOR TIGHT URBAN DIAMOND INTERCHANGE

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概要

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• A new geometric design and two types of signal optimization models were proposed to cope with the problem for the left turn traffic from minor road to ramp in TUDI. One model is BMILP that optimizes all signal timings for the proposed design, the other is a combined model that optimizes green intervals by TRANSYT-7F subject to phase sequence and offset resulted from the BMILP. The proposed design and traffic control allows the left-turn traffic to make left-turn and enter the ramp at the upstream intersection. As the result, the left-turn traffic doesn't have to go to the downstream intersection and there are less traffic volumes than those of TUDI at the two intersections. The simulation results showed that the proposed design using the proposed models certainly are superior to TUDI using TRANSYT-7F in reducing delay, where the more traffic (especially the left turn traffic) the greater the effect. Combined model was superior to BMILP for low left turn volume, vice versa for high left turn volume.

著者

• Lee Jongman

  Jungbu Construction Office Korea Highway Corporation

関連論文

• DEVELOPMENT OF DESIGN AND TRAFFIC CONTROL FOR TIGHT URBAN DIAMOND INTERCHANGE

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