Due to the lack of instructions and regulations, pedestrian crossing areas and routes are usually uncertain at mid-blocks without crossing facilities, resulting in higher crossing risks. Using Unmanned Aerial Vehicle and roadside camera data, this study investigates pedestrian crossing behaviors at mid-blocks without crossing facilities by proposing metrics for characterizing pedestrian crossing routes, including entry point, crossing angle and trajectory shape. This study also contributes to the literature by investigating the role of roadside environment (i.e. pedestrian’s start–end Points of interest (POIs), distribution of curb cuts, roadside parking and bus stops) in explaining pedestrian route choice, which could help with the street layout design at such areas.

The results emphasize the attractiveness effects of curb cuts on pedestrians’ choices of entry points. Moreover, crosswalk usage and choosing curb cut as the entry point could contribute to a larger crossing angle. In addition, pedestrians with direct opposite start–end POIs also have a higher inclination of crossing perpendicularly. Pedestrians alighting from roadside-parked cars are more likely to cross with larger angles and complex-curve trajectories. In contrast, crossings with bus stop as the start POI and end POI are related to smaller crossing angles. Finally, practical suggestions are also provided to help with the street layout design and the development of drivers warning facilities, further enhancing pedestrian crossing safety at mid-blocks without crossing facilities.

由于缺乏指示和规定，在没有过马路设施的街区中间，行人过马路的区域和路线通常是不确定的，导致过马路的风险较高。本研究使用无人驾驶飞行器和路边摄像头数据，通过提出表征行人过街路线的指标（包括入口点、交叉角度和轨迹形状），调查没有过马路设施的中间街区的行人过街行为。本研究还通过调查路边环境（即行人的起点-终点兴趣点 (POI)、路缘切割分布、路边停车位和公交车站）在解释行人路线选择方面的作用，为文献做出贡献，这可能有助于街道这些区域的布局设计。

结果强调了路缘切割对行人入口点选择的吸引力效应。此外，人行横道的使用和选择路缘石作为入口点可能会导致交叉角度更大。此外，具有正对起点-终点兴趣点的行人也有更高的垂直交叉倾向。从路边停放的汽车上下来的行人更有可能以更大的角度和复杂的曲线轨迹过马路。相比之下，以公交车站为起始 POI 和结束 POI 的交叉路口与较小的交叉角度相关。最后，还对街道布局设计和驾驶员警示设施的建设提出了切实可行的建议，进一步提高了没有过马路设施的中街区行人过马路的安全性。