RING 1 RING 2 $1 9 $5 MAJOR STREET $2 O none $6 BARRIER = Phase Number Protected Movement 43 MINOR STREET $4 Permitted Movement Pedestrian Movement BARRIER In this ring and barrier diagram, what sequencing is used for the protected left turns? O lead-lead lead-lag lag-lag
RING 1 RING 2 $1 9 $5 MAJOR STREET $2 O none $6 BARRIER = Phase Number Protected Movement 43 MINOR STREET $4 Permitted Movement Pedestrian Movement BARRIER In this ring and barrier diagram, what sequencing is used for the protected left turns? O lead-lead lead-lag lag-lag
Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter9: Capacity And Level Of Service For Highway Segments
Section: Chapter Questions
Problem 17P
Related questions
Question
![The image displays a ring and barrier diagram used in traffic signal design, featuring two rings labeled as RING 1 and RING 2.
**RING 1:**
- **Φ1:** Displays a protected left turn for the major street with corresponding arrows indicating movement direction.
- **Φ2:** Indicates permitted through and right turn movements for the major street.
**RING 2:**
- **Φ5:** Shows a protected left turn for the major street.
- **Φ6:** Indicates permitted through and right turn movements for the major street.
**Minor Street Phases:**
- **Φ3:** Displays permitted and protected left turns, with pedestrian movements indicated by symbols.
- **Φ4:** Shows permitted and protected through and right turns.
The phases are separated by barriers to prevent conflicting movements.
**Legend:**
- Solid arrows represent protected movements.
- Dashed arrows indicate permitted movements.
- A pedestrian symbol shows pedestrian movement.
**Question:**
In this ring and barrier diagram, what sequencing is used for the protected left turns?
- ○ lead-lead
- ○ lead-lag
- ○ lag-lag
- ○ none](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8a064aa0-d0ec-40b9-8477-b54331774ee8%2Fa37e9fb7-45db-4c16-a8d1-e62b7b0057bc%2F6y7zb44_processed.png&w=3840&q=75)
Transcribed Image Text:The image displays a ring and barrier diagram used in traffic signal design, featuring two rings labeled as RING 1 and RING 2.
**RING 1:**
- **Φ1:** Displays a protected left turn for the major street with corresponding arrows indicating movement direction.
- **Φ2:** Indicates permitted through and right turn movements for the major street.
**RING 2:**
- **Φ5:** Shows a protected left turn for the major street.
- **Φ6:** Indicates permitted through and right turn movements for the major street.
**Minor Street Phases:**
- **Φ3:** Displays permitted and protected left turns, with pedestrian movements indicated by symbols.
- **Φ4:** Shows permitted and protected through and right turns.
The phases are separated by barriers to prevent conflicting movements.
**Legend:**
- Solid arrows represent protected movements.
- Dashed arrows indicate permitted movements.
- A pedestrian symbol shows pedestrian movement.
**Question:**
In this ring and barrier diagram, what sequencing is used for the protected left turns?
- ○ lead-lead
- ○ lead-lag
- ○ lag-lag
- ○ none
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