Problem 2: Incident Impact Analysis (Deterministic queue analysis) On a section of freeway, an accident occurs at 10:00am at point B. First, both lanes are blocked, then after 15 minutes, one lane is cleared. A 8.8 miles Traffic Sensor Data: A: q = 2700 vph B: one-lane open with q = 1500vph B: two-lane open with q = 3600vph Questions: 1. What is the queue size (# of vehicles) at 10:15? 2. At what time the queue stops increasing? 3. What is the max queue size? 4. Does max queue reach point A if average length of vehicle (plus spacing) is 30 ft? 5. If the second lane opens at 11:00, at what time queue is cleared?

Problem 2: Incident Impact Analysis (Deterministic queue analysis) On a section of freeway, an accident occurs at 10:00am at point B. First, both lanes are blocked, then after 15 minutes, one lane is cleared. A 8.8 miles Traffic Sensor Data: A: q = 2700 vph B: one-lane open with q = 1500vph B: two-lane open with q = 3600vph Questions: 1. What is the queue size (# of vehicles) at 10:15? 2. At what time the queue stops increasing? 3. What is the max queue size? 4. Does max queue reach point A if average length of vehicle (plus spacing) is 30 ft? 5. If the second lane opens at 11:00, at what time queue is cleared?

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter8: Intersection Control

Section: Chapter Questions

Problem 8P

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Problem 2: Incident Impact Analysis (Deterministic queue analysis)
On a section of freeway, an accident occurs at 10:00am at point B. First, both lanes are blocked, then after 15 minutes, one lane is cleared.
A
8.8 miles
Traffic Sensor Data:
A: q = 2700 vph
B: one-lane open with q = 1500vph
B: two-lane open with q = 3600vph
Questions:
1. What is the queue size (# of vehicles) at 10:15?
2. At what time the queue stops increasing?
3. What is the max queue size?
4. Does max queue reach point A if average length of vehicle (plus spacing) is 30 ft?
5. If the second lane opens at 11:00, at what time queue is cleared?

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