Class_37_Review

Class_37_Review - Review 1. What is the purpose of the...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
The Pennsylvania State University Department of Civil and Environmental Engineering CE 321: Highway Engineering Class 37 Review Signalized Intersection Analysis Spring 2008
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Review 1. How does a signal allocate capacity? 2. Under what circumstances can traffic signals increase the flow through an intersection? 3. Why are right angle accidents frequently reduced after signal installation? 4. Why do rear end crashes frequently increase after signal installation? 5. Why is disrespect for unwarranted signals or misapplied signals a problem for transportation engineers? (Why do we care?)
Background image of page 2
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Review 1. What is the purpose of the all-red clearance interval? What important tradeoff is represented in its use? 2. What is the purpose of the lead pedestrian interval? How does it work? Under what circumstances is it used? 3. What is a phase? How is it related to the cycle length? 4. Sketch the saturation flow model of intersection traffic flow; include start-up and clearance lost times, saturation flow and effective green. 5. What is the conceptual rationale for the determination of the effective green?...
View Full Document

Page1 / 3

Class_37_Review - Review 1. What is the purpose of the...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online