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RING 1 RING 2 $1 $5 MAJOR STREET $2 46 1 BARRIER Phase Number Protected Movement 43 MINOR STREET $4 Permitted Movement >Pedestrian Movement BARRIER In this ring and barrier diagram, which pair of phases constitutes a phase pair? phase 1 and phase 2 phase 1 and phase 5 phase 1 and phase 6 O phase 1 and phase 3

RING 1 RING 2 $1 $5 MAJOR STREET $2 46 1 BARRIER Phase Number Protected Movement 43 MINOR STREET $4 Permitted Movement >Pedestrian Movement BARRIER In this ring and barrier diagram, which pair of phases constitutes a phase pair? phase 1 and phase 2 phase 1 and phase 5 phase 1 and phase 6 O phase 1 and phase 3

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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**Ring and Barrier Diagram Explanation:** The diagram illustrates a traffic signal control system using a ring and barrier structure. This setup is typically used to manage the flow of vehicles and pedestrians at intersections. The diagram is divided into two rings, each with three phases. 1. **Ring 1:** - **Phase 1 (Φ1):** Located on the major street, marked with arrows indicating both permitted (dashed lines) and protected (solid lines) vehicle movements, as well as potential pedestrian movement. - **Phase 2 (Φ2):** Not explicitly shown in the diagram, presumably refers to a continuation or a subsequent phase in the sequence. - **Phase 5 (Φ5):** Also on the major street, shares some similar traffic movements to Phase 1 but may vary in direction or protection. 2. **Ring 2:** - **Phase 3 (Φ3):** Located on the minor street. Indicates permitted and protected vehicle movements with corresponding pedestrian considerations. - **Phase 4 (Φ4):** Similarly structured to Phase 3, with different traffic and pedestrian flow patterns. - **Phase 6 (Φ6):** Completes the cycle on the minor street, mirroring some of the movements seen in other phases. 3. **Barriers:** Two barriers separate the phases, ensuring certain movements do not occur simultaneously for safety and efficiency reasons. **Legend:** - **Φ:** Denotes phase number. - **Arrows:** - Solid lines: Protected movements. - Dashed lines: Permitted movements. - Dotted lines: Pedestrian movement. **Question:** In this ring and barrier diagram, which pair of phases constitutes a phase pair? - ○ Phase 1 and Phase 2 - ○ Phase 1 and Phase 5 - ○ Phase 1 and Phase 6 - ○ Phase 1 and Phase 3 This educational piece provides insight into traffic management and the strategic sequencing of signal phases to enhance the efficiency and safety of intersection navigation.
Transcribed Image Text:**Ring and Barrier Diagram Explanation:** The diagram illustrates a traffic signal control system using a ring and barrier structure. This setup is typically used to manage the flow of vehicles and pedestrians at intersections. The diagram is divided into two rings, each with three phases. 1. **Ring 1:** - **Phase 1 (Φ1):** Located on the major street, marked with arrows indicating both permitted (dashed lines) and protected (solid lines) vehicle movements, as well as potential pedestrian movement. - **Phase 2 (Φ2):** Not explicitly shown in the diagram, presumably refers to a continuation or a subsequent phase in the sequence. - **Phase 5 (Φ5):** Also on the major street, shares some similar traffic movements to Phase 1 but may vary in direction or protection. 2. **Ring 2:** - **Phase 3 (Φ3):** Located on the minor street. Indicates permitted and protected vehicle movements with corresponding pedestrian considerations. - **Phase 4 (Φ4):** Similarly structured to Phase 3, with different traffic and pedestrian flow patterns. - **Phase 6 (Φ6):** Completes the cycle on the minor street, mirroring some of the movements seen in other phases. 3. **Barriers:** Two barriers separate the phases, ensuring certain movements do not occur simultaneously for safety and efficiency reasons. **Legend:** - **Φ:** Denotes phase number. - **Arrows:** - Solid lines: Protected movements. - Dashed lines: Permitted movements. - Dotted lines: Pedestrian movement. **Question:** In this ring and barrier diagram, which pair of phases constitutes a phase pair? - ○ Phase 1 and Phase 2 - ○ Phase 1 and Phase 5 - ○ Phase 1 and Phase 6 - ○ Phase 1 and Phase 3 This educational piece provides insight into traffic management and the strategic sequencing of signal phases to enhance the efficiency and safety of intersection navigation.
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