Level of service appraisal method for shared use and design guidelines for various cycling spaces

本研究的目的是从舒适性的角度出发，建立一种新的自行车和行人共享使用的评价方法，并提出日本主要采用的自行车和行人共享人行道的服务水平。研究结果如下：1)混合交通风险感知模型（2000-2001）：通过越野试验建立了混合交通风险感知模型，该模型可以利用自行车和行人的相对位置和速度来估计两者冲突时的风险感知。2)共享使用交通评价（2001-2002）：利用该模型，提出了视频调查混合交通评价指标。该指数反映了骑自行车者与行人以及骑自行车者之间的近距离碰撞预测频率。3)服务等级系统（2001-2002）：提出了一种基于近靶预测模型的自行车与行人共享服务等级系统。可以明确的是，该指数与交通密度、自行车速度、道路使用者的安全意识水平有明显的关系。4)共享人行道上自行车道的评价（2002）：将提出的服务等级系统应用于四个共享人行道上的自行车道项目和一个购物街的评价。彩色自行车道对行人与自行车的分离和提高服务水平有一定的作用。

The aim of this research is to develop a new evaluation method for shared use of bicycles and pedestrians from a view point of their comfort, and to propose the level-of-service of sidewalks with shared use of bicycles and pedestrians which are mainly adopted in Japan. Results from this research are as follows,1) Risk-perception model for mixed traffic (2000-2001) : The risk perception model was developed through off-road experiments, which can estimate the risk perceptions in the conflicts of bicycles and pedestrians, by using their relative position and speed.2) Evaluation of shared use traffic (2001-2002) : By employing this model, the evaluation index for mixed traffic using video survey was proposed. The index presents the predicted frequency of near-miss between cyclists and pedestrians and between cyclists.3) Level-of-service system (2001-2002) : A new level-of-service system for shared use of bicycles and pedestrians by employing near-miss prediction model, is also proposed. It can be clarified that the index shows clear relationship to traffic density, bicycle speed, level of safety sense of road users.4) Evaluation of bicycle lanes on shared use sidewalks (2002) : The proposed level-of-service system are applied to evaluation of four cycle lane projects on shared use sidewalks and a shopping street. Colored cycle lane shows effects on separation of pedestrians and bicycles and improvement of level-of-service.