查看文章

Connected and automated vehicles (CAVs) will potentially improve transportation system performance. Guidance on the capacity impact of CAVs at different market penetration rates (MPRs) will help agencies to incorporate the effects of CAVs when planning and designing roadways. Traditionally, practitioners have used the Highway Capacity Manual (HCM) to assess capacity and evaluate the quality of service for various facilities and systems. Although several studies have provided insight into the capacity benefits of CAVs, there is a need for quantified CAV effects that can be used to develop HCM guidance. In this study, the capacity benefits of CAVs at signalized intersections were estimated, and capacity adjustment factors (CAFs) were developed for the HCM. The researchers considered variations in CAV gap/headway settings, platoon lengths, turning movement types (through and left), and left-turn phasing …