16.8 Design Consistency in Rural Driving Motorists make fewer errors when they encounter geometric features that are consistent with their expectations. Inconsistent designs or facility operations violate driver expectations. Expectations for downstream road segments...
16.4 Countermeasures for Pavement/Shoulder Drop-Offs Shoulder drop-offs are present where the pavement surface and roadside surface differ in height (from a fraction of an inch to several inches). Height differences typically result from rutting erosion, excessive...
15.10 Sight Distance Considerations for Urban Bus Stop Locations Where bus stops are placed depends on several factors, including vehicle delays, bus delays, pedestrian waiting areas, cost, and safety. Table 15.4 highlights sight distance considerations for stops...
15.8 Signage and Markings for High Occupancy Vehicle (HOV) Lanes HOV lanes reduce travel times and increase level of service for buses and other HOVs. Good signage and markings are critical for communicating rules for using these lanes. Table 15.3 lists design...
15.6 Methods to Reduce Driver Speeds in School Zones Traffic control devices and pavement markings are valuable for encouraging motorists to drive at lower speeds in school zones. Table 15.2 provides operational and design guidelines for school zones. Table 15.2...
15.4 Methods to Increase Compliance at Uncontrolled Crosswalks Design treatments that improve pedestrian safety and increase compliance with crossing requirements include: Installing a HWAK signal beacon or a half signal Providing a maximum pedestrian delay of 30 – 60...
