为探讨共享单车用户在不同影响因素下对现金奖励调度策略的接受程度,设定了针对共享单车用户的调查问卷,并在济南市进行了调查,得到519份有效问卷。基于扩展的计划行为理论（Extended Theory of Planned Behavior, ETPB）模型和相关结构方程模型（Structural Equation Model, SEM）,设定了社会规范、支付能力、体力、感知服务、感知绿色价值5个构念以及5个相关假定,以测度不同奖励调度情境下共享单车用户对奖励策略的接受程度。结果显示,支付能力和体力对用户接受调度的影响程度最大,其次是社会规范和感知服务,感知绿色价值的影响程度最小。在此基础之上,提出了增大站点密度、实行现金奖励及提高车辆质量等建议,以降低运营成本、提升用户满意度与车辆使用率。 相似文献
Trains crashing onto heavy road vehicles stuck across rail tracks are more likely occurrences at level crossings due to ongoing increase in the registration of heavy vehicles and these long heavy vehicles getting caught in traffic after partly crossing the boom gate; these incidents lead to significant financial losses and societal costs. This paper presents an investigation of the dynamic responses of trains under frontal collision on road trucks obliquely stuck on rail tracks at level crossings. This study builds a nonlinear three-dimensional multi-body dynamic model of a passenger train colliding with an obliquely stuck road truck on a ballasted track. The model is first benchmarked against several train dynamics packages and its predictions of the dynamic response and derailment potential are shown rational. A geometry-based derailment assessment criterion is applied to evaluate the derailment behaviour of the frontal obliquely impacted trains under different conditions. Sensitivities of several key influencing parameters, such as the train impact speed, the truck mass, the friction at truck tyres, the train–truck impact angle, the contact friction at the collision zone, the wheel/rail friction and the train suspension are reported. 相似文献
This paper studies the impact of removing the level crossing, which constitutes traffic hazard to the society, on house prices by conducting a quasi-natural experiment using the Level Crossing Removal Project (LXRP) implemented by the Victoria state government in Australia since 2015. Using a difference-in-differences method, we analyzed the changes in housing prices due to the improvement of transportation infrastructure, gauging the LXRP’s impact on house and unit submarkets separately. We found that the prices for house and unit markets increased significantly after the removal of level crossings, with the value uplift decreasing with distance from the removal site. This paper contributes to the existing literature by adding an empirical study related to the enhancement of infrastructure aiming to improve the traffic safety in the urban context. Unlike previous studies, this study examines the effect of improvement projects for existing infrastructure and provides relevant implications to improve the efficiency of investing public resources in infrastructure improvement.
