視認性等を考慮した自転車通行位置を示す矢羽根型路面表示の設置方法

摘要

Arrow-shaped road markings have been painted on the surface of the roads shared by bikes and cars to indicate bike lanes. However, no specifications have been set for the size of those arrows and the intervals at which they are marked on the road surface. In this study, we built experimental bike lanes and painted arrows of different sizes and colors at various intervals on the lanes in order to examine the appropriate size of an arrow-shaped marking and the intervals between the markings, as well as to find out how to improve its nighttime visibility. We will report the results from the biking test conducted on those lanes.%自転車と自動車が混在走行することになる車道混在の場合に、自転車通行位置を示す矢羽根型路面表示を整備する際、具体的な寸法や設置間隔等は現在定められていない。本稿では、自転車通行位置を示す矢羽根型路面表示の望ましい寸法•設置間隔や夜間視認性の向上方策について検討するため、寸法•設置間隔や色の異なる矢羽根型路面表示による自転車通行空間を仮設し、走行実験により検証した結果を報告する。