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発表 Construction of a passing maneuver model on a two-lane highway with consideration of road surface and visibility conditions

作成年度 2010年度
論文名 Construction of a passing maneuver model on a two-lane highway with consideration of road surface and visibility conditions
論文名(和訳) 路面状態及び視界条件を考慮した2車線道路の追越挙動モデルの構築
論文副題
発表会 90th TRB Annual Meeting
誌名(No./号数)
発表年月日 2011/01/23 ~ 2011/01/27
所属研究室/機関名 著者名(英名)
寒地交通チーム武本 東(TAKEMOTO Azuma)
寒地交通チーム宗広 一徳(MUNEHIRO Kazunori)
寒地交通チーム高橋 尚人(TAKAHASHI Naoto)
寒地交通チーム葛西 聡(KASAI Satoshi)
北海道開発局山本 清二(YAMAMOTO Seiji)
北海道開発局堤 啓(TSUTSUMI Kei)
抄録
Most national highways in rural parts of Hokkaido are two-way two-lane roads. In these highways、 passing maneuvers using oncoming lanes are frequently observed. Such passing is even observed when road surfaces are covered with compacted snow in the snowy season. In the implementation of measures to optimize speed and safety on a certain road、 it is necessary to conduct traffic simulations on passing maneuvers using the oncoming lane of a two-way、 two-lane highway. However、 there have been no traffic simulations on passing maneuvers with consideration of conditions on winter surfaces covered with snow and ice or poor visibility caused by snowfall、 fog and other factors.[*]In this study、 a traffic simulation to model passing maneuvers was created using values measured in a passing-maneuver field study conducted on a two-lane highway in summer and winter. The field values for the number of passing maneuvers、 traffic volume and speed distribution were compared with the simulation results. The outcomes confirmed that the difference between them was small. The sensitivity analysis results revealed that the number of passing maneuvers when the surface is covered with compacted snow and visibility is poor does not increase as much as that on the dry surface even when the traffic volume in the original lane becomes higher. The passing success rate tended to decrease with higher volumes of traffic in the oncoming lane regardless of surface conditions.
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