道路狭隘地域における隅切りの設置と小型消防車両の導入による旋回可能性の改善効果に関する基礎的考察

摘要

The purpose of this study is to get a basic finding concerning the effect of improving turn possibility of fire engines in the intersection by the installation of corner cut and deployment of small fire engines in crowded wooden houses district with narrow streets. First, we formulated the condition that the turn of fire engines on the corner is possible in consideration of corner cut. Second, we achieved the above-mentioned purpose through solving the following three problems. [1] Analysis of minimum scale of intersection where turn of fire engines is possible. [2] Simulation concerning installation of corner cut and deployment of small fire engines in an existing crowded wooden houses district with narrow streets. [3] Measurement of error margin when an index concerning minimum scale of intersection is applied to the crowded wooden houses district with narrow streets.%密集した市街地の災害に対する脆弱性は以前より多く指摘されて いるところであり，この災害脆弱性の一因として，狭隆な道路が連 続することによる災害対応活動の困難性があげられる．特に阪神・ 淡路大震災では，家屋の倒壊等による道路閉塞も加わって消防車両 が到達できない事例がみられた．一方で，震災時の道路閉塞がなく ても，日常的な火災等の災害に対して，各種緊急車両が道路狭隆の ため．到達が困難あるいは不可能な地域があることも事実である.