Assume that passenger car equivalents are 1.5 for trucks (ET), 1.6 for left-turns (EL), and 1.4 for right-turns (ER), and saturation flow qs= 160 x (curb-to-curb width / # of lanes) equivalent passenger-car units per hour per lane (pcu/hr/ln). Pedestrian walk speed (PS) is 4 ft/sec, and the effective width of crosswalk (WE) is 9 ft. Given that the intergreen time is 8.0 seconds and lost time is 3.5 seconds per phase, design a 2-phase signal timing plan using the Webster’s method. The table presents traffic data and physical characteristics for North-South (N-S) and East-West (E-W) approaches, including the following details:- **Curb-to-curb width:** - N-S Approaches: 50 feet (4 lanes) - E-W Approaches: 48 feet (4 lanes)- **Peak-hour through movement volumes:** - N-S Approaches: - North: 500 - South: 600 - E-W Approaches: - East: 400 - West: 350- **Peak-hour right-turn movement volumes:** - N-S Approaches: - North: 100 - South: 130 - E-W Approaches: - East: 120 - West: 100- **Peak-hour left-turn movement volumes:** - N-S Approaches: - North: 100 - South: 95 - E-W Approaches: - East: 75 - West: 125- **PHF (Peak Hour Factor):** 0.90 for both approaches- **Vehicle composition:** - Passenger cars: 95% - Trucks: 5%- **Pedestrians per phase (Nᴾ):** - N-S Approaches: - North: 20 - South: 25 - E-W Approaches: - East: 25 - West: 30This table provides insight into the traffic flow and infrastructure of the specified approaches, useful for urban planning and traffic management.

To design a 2-phase signal timing plan using Webster's method, Calculate the critical flow ratio (y)…

Answered: Assume that passenger car equivalents…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Concept explainers

Question

Assume that passenger car equivalents are 1.5 for trucks (E_T), 1.6 for left-turns (E_L), and 1.4 for right-turns (E_R), and saturation flow q_s= 160 x (curb-to-curb width / # of lanes) equivalent passenger-car units per hour per lane (pcu/hr/ln). Pedestrian walk speed (P_S) is 4 ft/sec, and the effective width of crosswalk (W_E) is 9 ft. Given that the intergreen time is 8.0 seconds and lost time is 3.5 seconds per phase, design a 2-phase signal timing plan using the Webster’s method.

The table presents traffic data and physical characteristics for North-South (N-S) and East-West (E-W) approaches, including the following details:

- **Curb-to-curb width:**
- N-S Approaches: 50 feet (4 lanes)
- E-W Approaches: 48 feet (4 lanes)

- **Peak-hour through movement volumes:**
- N-S Approaches:
- North: 500
- South: 600
- E-W Approaches:
- East: 400
- West: 350

- **Peak-hour right-turn movement volumes:**
- N-S Approaches:
- North: 100
- South: 130
- E-W Approaches:
- East: 120
- West: 100

- **Peak-hour left-turn movement volumes:**
- N-S Approaches:
- North: 100
- South: 95
- E-W Approaches:
- East: 75
- West: 125

- **PHF (Peak Hour Factor):** 0.90 for both approaches

- **Vehicle composition:**
- Passenger cars: 95%
- Trucks: 5%

- **Pedestrians per phase (Nᴾ):**
- N-S Approaches:
- North: 20
- South: 25
- E-W Approaches:
- East: 25
- West: 30

This table provides insight into the traffic flow and infrastructure of the specified approaches, useful for urban planning and traffic management.

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions