### Ring and Barrier Diagram for Traffic Control**Diagram Explanation:**The diagram illustrates a ring and barrier system used to manage traffic signals at an intersection with a major and minor street. This system is divided into six phases across two rings and two barriers.- **Rings and Barriers:** - **Major Street (Ring 1):** - **Phase 1:** Allows left turns and through traffic from the left side. - **Phase 2:** Allows left turns and through traffic from the right side. - **Minor Street (Ring 2):** - **Phase 3:** Allows left turns and through traffic from the left side. - **Phase 4:** Allows left turns and through traffic from the right side.- **Barriers:** - Barrier lines separate phases to prevent conflicting movements across the intersection.- **Phases for Pedestrian Movements:** - **Phase 5:** Additional left turns and through movements. - **Phase 6:** Additional pedestrian movements.**Symbols Legend:**- **Phase Number:** Identified as numbers inside circles.- **Arrows:** - Solid arrows indicate **protected movements** for vehicular traffic. - Dotted arrows denote **permitted movements** amid protected phases. - Dotted 'T' shapes suggest pedestrian movements.**Question:**"In this ring and barrier diagram, what sequencing is used for the protected left turns?"- **Options:** - Lead-lead - Lead-lag - Lag-lag - NoneThe correct answer, as indicated, is **none**. This implies that the given diagram does not fit into the common sequences like lead-lead, lead-lag, or lag-lag concerning protected left turns.

The above mode provides for efficient left-turn service, often without causing a significant…

$1 $5 MAJOR STREET 42 46 BARRIER -Phase Number -Protected Movement 43 MINOR STREET LU Permitted Movement -Pedestrian Movement BARRIER In this ring and barrier diagram, what sequencing is used for the protected left turns? lead-lead lead-lag lag-lag none

$1 $5 MAJOR STREET 42 46 BARRIER -Phase Number -Protected Movement 43 MINOR STREET LU Permitted Movement -Pedestrian Movement BARRIER In this ring and barrier diagram, what sequencing is used for the protected left turns? lead-lead lead-lag lag-lag none

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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Concept explainers

Friction

Friction is defined as the force that prevents any solid surface, any layer of fluid, or any kind of element or material from sliding.

Question

### Ring and Barrier Diagram for Traffic Control

**Diagram Explanation:**

The diagram illustrates a ring and barrier system used to manage traffic signals at an intersection with a major and minor street. This system is divided into six phases across two rings and two barriers.

- **Rings and Barriers:**
- **Major Street (Ring 1):**
- **Phase 1:** Allows left turns and through traffic from the left side.
- **Phase 2:** Allows left turns and through traffic from the right side.

- **Minor Street (Ring 2):**
- **Phase 3:** Allows left turns and through traffic from the left side.
- **Phase 4:** Allows left turns and through traffic from the right side.

- **Barriers:**
- Barrier lines separate phases to prevent conflicting movements across the intersection.

- **Phases for Pedestrian Movements:**
- **Phase 5:** Additional left turns and through movements.
- **Phase 6:** Additional pedestrian movements.

**Symbols Legend:**
- **Phase Number:** Identified as numbers inside circles.
- **Arrows:**
- Solid arrows indicate **protected movements** for vehicular traffic.
- Dotted arrows denote **permitted movements** amid protected phases.
- Dotted 'T' shapes suggest pedestrian movements.

**Question:**

"In this ring and barrier diagram, what sequencing is used for the protected left turns?"

- **Options:**
- Lead-lead
- Lead-lag
- Lag-lag
- None

The correct answer, as indicated, is **none**. This implies that the given diagram does not fit into the common sequences like lead-lead, lead-lag, or lag-lag concerning protected left turns.

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