projectsnax.blogg.se

This chapter documents the concepts of traffic signal design as they apply to traffic signal timing.

Figure 4-17 Example of vehicle detector design (through lane on side street).Figure 4-16 Examples of pedestrian push buttons.Figure 4-15 Phase diagram illustrating a right-turn overlap.Figure 4-14 Ring-barrier diagrams showing a leading pedestrian interval and an exclusive pedestrian phase4-19.Figure 4-13 Illustration of the yellow trap.Figure 4-12 Ring-and-barrier diagram showing protected lead-lag left turns.Figure 4-11 Guidelines for determining the potential need for a left-turn phase.Figure 4-10 Prohibited left turns by time of day.Figure 4-9 Ring-and-barrier diagram showing split phasing.Figure 4-8 Ring-and-barrier diagram showing protected-permissive phasing.Figure 4-7 Ring-and-barrier diagram showing protected phasing.Figure 4-6 Ring-and-barrier diagram showing permissive phasing.Figure 4-5 Ring-and-barrier diagram for intersection of two one-way streets.Figure 4-4 Standard ring-and-barrier diagram.Figure 4-3 Typical vehicular and pedestrian movements at a four-leg intersection.Figure 4-2 Phasing and movement diagram for the intersection of two one-way streets.Figure 4-1 Physical components of a signal system.Table 4-2 Recommended detector locations and timing settings for multiple detector technique.Table 4-1 Recommended distance between stop line and detector.4.7.5 Detection Design for Low-Speed Traffic Movements.4.7.4 Detection Design for High-Speed Approaches.4.4.3 Lead-Lag Left-Turn Phase Sequence.