This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: CIVL 563 Traffic Control Fundamentals Homework 1 Due Date: March 17, 2010 ANSWER ALL FIVE QUESTIONS 1. An intersection approach has three lanes, permitted right turns, 8% right turns with a through vehicle equivalent of 4.50, and a saturation flow rate of 1750 vphgpl for through vehicles under prevailing conditions: a. What is the rightturn adjustment factor for the case described? b. Determine the saturation flow rate and saturation headway for the approach, including the impact of rightturning vehicles. c. If the approach has an effective green time of 45 seconds in a 75 second cycle length, what is the capacity of the approach in vph? 2. Consider a “4 by 4” intersection (two lanes on each approach), and assume that the lost time per phase is 4 sec, with 2.1 sec discharge headway a. Using the “time budget” approach, estimate the maximum number of vehicles that can be processed by this intersection in one hour, as a function of cycle length, for twophase operation. Plot the range of function of cycle length, for twophase operation....
View Full
Document
 Fall '10
 HKLO

Click to edit the document details