![]() ![]() The left-turn crossover movement, opposing through movements, and signal control at the crossovers and the main intersection are shown in figure 4. The traffic signals are operated in a coordinated manner. (1) Traffic signals are present at the main intersection and at the locations of the left-turn crossovers. 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. As shown in figure 3, traffic that would normally turn left at the main intersection first crosses the opposing through lanes at a signal-controlled intersection several hundred feet upstream of the main intersection. The main feature of this alternative intersection is the relocation of the left-turn movement on an approach to the other side of the opposing roadway, which consequently eliminates the left-turn phase for this approach at the main intersection. The reduction in the numbers of traffic signal phases and conflict points at DLT intersections can result in improved traffic operations and safety. ![]() The DLT intersection, also known as a CFI and a XDL intersection, has been implemented at several locations in the United States to reduce congestion. DISPLACED LEFT-TURN INTERSECTION 2.1 INTRODUCTION Alternative Intersections/Interchanges: Informational Report (AIIR) CHAPTER 2. ![]()
0 Comments
Leave a Reply. |