Permissive pedestrian A continuous green tee crossings are provided intersection is a across the minor street signalized 3-leg at the signal. Due to the CAP-X (planning intersection that Minor street left-turns continuous flowing level) features raised Ride on street in are channelized, nature of through channelization that travel lane or allowing a continuous movements on one of Synchro, Continuous separates the “top” bicycle lane (if green signal to be the major approaches, SimTraffic Green Tee through movement from available), unless displayed to one of the pedestrian movements the other movements of multi-use path is mainline through across the mainline VISSIM or similar the intersection, present. movements. should be microsimulation enabling the top through accommodated at an software movement to operate adjacent intersection or unsignalized with no via a mid-block crossing, conflicting movement. as appropriate. Depending on the desired inbound and A quadrant roadway Left-turn movements outbound sidewalks, CAP-X (planning intersection is intended are rerouted to use a some pedestrians are level) to eliminate all direct connector roadway (i.e., required to cross an Similar to left-turn movements the quadrant). All extra street to make conventional Synchro, Quadrant from the main turns at the main their desired movement intersection. Design SimTraffic Roadway intersection by intersection are compared to a techniques for them to turns to prohibited, allowing for conventional signalized direct left are AIIR VISSIM or similar and from a connector two-phase signal intersection. The available. microsimulation roadway located in one operation at the main signals reduce the software quadrant. intersection. delay incurred by pedestrians at each crossing. 10. 1 Source for each illustration: Kittelson & Associates, Inc
Continuous Green Tee A continuous green tee intersection is a signalized 3-leg intersection that features raised channelization that separates the “top” through movement from the other movements of the intersection, enabling the top through movement to operate unsignalized with no conflicting movement. Minor street left-turns are channelized, allowing a continuous green signal to be displayed to one of the mainline through movements. Permissive pedestrian crossings are provided across the minor street at the signal. Due to the continuous flowing nature of through movements on one of the major approaches, pedestrian movements across the mainline should be accommodated at an adjacent intersection or via a mid-block crossing, as appropriate. Ride on street in travel lane or bicycle lane (if available), unless multi-use path is present. CAP-X (planning level) Synchro, SimTraffic VISSIM or similar microsimulation software Quadrant Roadway A quadrant roadway intersection is intended to eliminate all direct left-turn movements from the main intersection by them to turns to and from a connector roadway located in one quadrant. Left-turn movements are rerouted to use a connector roadway (i.e., the quadrant). All at the main intersection are prohibited, allowing for two-phase signal operation at the main intersection. Depending on the desired inbound and outbound sidewalks, some pedestrians are required to cross an extra street to make their desired movement compared to a conventional signalized intersection. The signals reduce the delay incurred by pedestrians at each crossing. Similar to conventional intersection. Design techniques for direct left turns are available. AIIR CAP-X (planning level) Synchro, SimTraffic VISSIM or similar microsimulation software 10. 1 Source for each illustration: Kittelson & Associates, Inc
19310.003%20-%20PennDOT%20ICE%20Policy%20-%208th%20Draft.docx