自行車行駛車道選擇行為偏好模式之研究

Abstract

由於近年來全球暖化議題逐漸受到重視，發展綠色運具以抑制私人運具所產生之溫室氣體成為各國運輸政策的重點之一。在眾多綠色運具中，由於自行車同時兼備健康與環保概念，具有零汙染、使用成本低、機動性高等特性，先進國家皆推行鼓勵自行車使用的交通政策。儘管如此，目前國內自行車道多以河濱休閒為建設優先，都市通勤型則較為零星。因此本研究探討自行車騎士於市區道路之選擇行為，依此建立自行車路線選擇模式;並瞭解各屬性在路線選擇中重要程度，找出提昇自行車環境的關鍵，以提供未來都市自行車道建設之參考。 本研究透過問卷方式，初步調查有關路線選擇各因子之重要程度，並以敘述性偏好法蒐集自行車騎士之路線選擇行為，並以多元羅吉特建立路線選擇模式，其結果顯示實體分隔之自行車道能增加選擇意願，而旅行距離並不如預期中的受到重視，表示自行車騎士願意增加部分旅行距離以換取更佳的自行車環境。透過路線選擇模式，可評估各路線對於自行車用路人之效用值，較佳之路線可做為未來優先建置自行車道之參考，此外亦可透過模式檢討效用值較低之路線，進行交通工程面之改善。

Due to the gradually increasing concerns about global warming issues in recent years, developing green transportation is one of the prior strategies to suppress the greenhouse gases produced by private vehicles in nations. Bicycle is considering a healthy and eco-friendly transportation mode with characteristics of zero-pollution, low cost, high mobility, etc.; therefore, strategies encouraging bicycle using are implemented in advanced nations. However, the present bicycle lanes are mostly constructed for recreational proposes and mainly built along with rivers; bicycle lanes for commuting in urban areas are less and separated. This research aims to discuss riders’ choice behavior in urban roads for building up a bicycle lane route choice mode; to understand the importance of each factor in route choice, discovering the key point of bicycle surrounding improvement, in order to provide a reference as urban bicycle lane constructing in the future. In this research, questionnaire is used for investigating the importance of each factor in route choice and collecting riders’ route choice behavior by using stated preference method, with the outcomes, the route choice mode can be established by applying multinomial logit model. In the result, bicycle lane with physical separation can increase riders’ choosing inclination, but travel distance is not as vital as expected, shown that riders are willing to expand part of travel distance for better bicycle surroundings. The utility of each route for riders can be evaluated through route choice mode; the route with better evaluation can be a referral for building up a bicycle lane priory, moreover, the route with worse evaluation can also be reviewed and proceed engineering improvement.