11.4 Restricting Right Turns on Red to Address Pedestrian Safety The Manual on Uniform Traffic Control Devices lists three pedestrian-related situations in which right turns on red (RTOR) should be restricted, including where: An exclusive pedestrian phase exists...
16.6 Rumble Strips Rumble strips are raised or grooved indentations on the shoulder or median. When a vehicle departs its lane and travels over rumble strips, motorists hear an audible alert and experience a vibrating sensation that warns their vehicle has departed...
5.12 Influence of Speed on Sight Distance When operating speeds are much faster than design speed, increasing sight distance to account for higher vehicle speeds can be a good option. Table 5.8 summarizes how different aspects of a road’s design influences operating...
5.6 Determining Intersection Sight Distance Drivers must have a clear view of an entire intersection so they can see traffic control devices and see far enough upstream or downstream along an intersecting road to identify acceptable gaps in cross traffic before...
5.4 Determining Stopping Sight Distance Stopping sight distance is the distance a motorist traveling at a particular speed needs to stop their vehicle once they detect an object on the road. To determine stopping sight distance, use actual operating speeds if they are...
5.2 Key Components of Sight Distance Formally, sight distance is the length of road a vehicle travels before the driver completes a maneuver in response to an element, hazard, or condition that requires a change in the vehicles speed and/or path. Sight distance...
