Depending on the desired inbound and outbound sidewalks, A signalized intersection some pedestrians may that uses at-grade ramp Major street vehicles be required to cross one connectors between attempting to make a CAP-X (planning additional street intersecting roadways to left-turn or U-turn utilize Same as level) compared to a facilitate indirect a connector ramp either conventional conventional signalized turns and/or U-turns. upstream (short intersection. Synchro, intersection. Jughandle The image shown here diamond-style ramp) or Additional crossing SimTraffic has diagonal connectors downstream (loop-style infrastructure is If pedestrians do not upstream of the cross ramp) that connects to provided at the VISSIM or similar interact with the street, but loop the minor street ramp connector. microsimulation quadrant where a connectors may also be approach upstream of software jughandle is located, placed downstream of the signal. there is no notable the cross street difference compared to a conventional signalized intersection. Left-turn movements at the intersection are relocated to the other A signalized intersection side of the opposing Bicyclists can be where one or more Pedestrians crossing at a roadway, eliminating the provided on the movements are DLT intersection may be left-turn phase for the road using marked relocated to the other required to cross more approach at the main bicycle lanes and side of the opposing travel lanes than at a intersection. Left-turns design techniques traffic flow. These conventional are brought across the for direct left CAP-X (Planning movements proceed intersection, and opposing travel lanes via are available. Level) Displaced through the intersection direction of traffic in a signalized intersection However, special Left-Turn simultaneously with the those lanes may be several hundred feet care is required for VISSIM or similar (DLT) through movements and counterintuitive to upstream of the main DLT intersections to microsimulation eliminates the left-turn pedestrians. Many DLT intersection. Left-turning consider and software phase on the approach. intersections are set up vehicles then travel on a address how The image shown here for pedestrians to cross new roadway parallel to bicyclists will has displaced lefts on in multiple stages with the opposing lanes and interact with both streets, but often median islands providing execute the left-turn different paths of they are displaced on a refuge. maneuver vehicles. only one street. simultaneously with the through traffic at the main intersection.
Jughandle A signalized intersection that uses at-grade ramp connectors between intersecting roadways to facilitate indirect and/or U-turns. The image shown here has diagonal connectors upstream of the cross street, but loop connectors may also be placed downstream of the cross street Major street vehicles attempting to make a left-turn or U-turn utilize a connector ramp either upstream (short diamond-style ramp) or downstream (loop-style ramp) that connects to the minor street approach upstream of the signal. Depending on the desired inbound and outbound sidewalks, some pedestrians may be required to cross one additional street compared to a conventional signalized intersection. If pedestrians do not interact with the quadrant where a jughandle is located, there is no notable difference compared to a conventional signalized intersection. Same as conventional intersection. Additional crossing infrastructure is provided at the ramp connector. CAP-X (planning level) Synchro, SimTraffic VISSIM or similar microsimulation software Displaced Left-Turn (DLT) A signalized intersection where one or more movements are relocated to the other side of the opposing traffic flow. These movements proceed through the intersection simultaneously with the through movements and eliminates the left-turn phase on the approach. The image shown here has displaced lefts on both streets, but often they are displaced on only one street. Left-turn movements at the intersection are relocated to the other side of the opposing roadway, eliminating the left-turn phase for the approach at the main intersection. Left-turns are brought across the opposing travel lanes via a signalized intersection several hundred feet upstream of the main intersection. Left-turning vehicles then travel on a new roadway parallel to the opposing lanes and execute the left-turn maneuver simultaneously with the through traffic at the main intersection. Pedestrians crossing at a DLT intersection may be required to cross more travel lanes than at a conventional intersection, and direction of traffic in those lanes may be counterintuitive to pedestrians. Many DLT intersections are set up for pedestrians to cross in multiple stages with median islands providing a refuge. Bicyclists can be provided on the road using marked bicycle lanes and design techniques for direct left turns are available. However, special care is required for DLT intersections to consider and address how bicyclists will interact with different paths of vehicles. CAP-X (Planning Level) VISSIM or similar microsimulation software