Conflict-Based Safety Performance Functions for Predicting Traffic Collisions by Type
作者： Emanuele Sacchi , Tarek Sayed
DOI: 10.3141/2583-07
关键词: Function (engineering) 、 Traffic volume 、 Type (model theory) 、 Transport engineering 、 Measure (mathematics) 、 Stratified analysis 、 Engineering
摘要: In road safety analysis, performance functions (SPFs) are used to predict the average number of collisions per year at a site. SPFs function various amounts exposure and, in some cases, site-specific characteristics. Exposure is measure opportunities for occur. The circulating traffic volume commonly adopted this purpose. However, not all vehicles interact unsafely Alternatively, conflicts may provide more appropriate because they represent only unsafe interactions between vehicles. There has been research on topic, mainly based aggregated data including conflict types. study stratified analysis was conducted by type conflict. Hence, main objectives were establish relationship predicted and using an SPF with as specific types conflict...
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