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Problem 2 - Page 3 of 4

ID# C502003

Problem 2: Reitz Union Drive Intersection Improvement Strategies

We can set up this analysis by using the data from Problem 1 to analyze the actuated signal control of the improved intersection with projected traffic in a standard HCM application using the procedures in Chapter 16 for signalized intersections. The operational analysis of a signalized intersection under actuated control requires the following typical data:

bullet

peak-hour turning movement volumes and peak-hour factors

bullet

pedestrian and bicycle flow rates

bullet

pedestrian walking speed, travel distance, and crosswalk width

bullet

lane numbers, widths, and usage

bullet

queue spacing and storage signal phasing, timing, and clearance data

bullet

number of approach grades, heavy vehicles, parking, and bus stop influence

The critical data for this analysis are shown in the following table:

Exhibit 5-22. Input Data for Analysis of Actuated Control: Museum Road/Reitz Union
 

EB

WB

SB

L

T

R

L

T

R

L

T

R

Lanes

1

1

-

-

1

S

1

-

1

Widths

12

12

-

-

12

-

12

-

12

Storage

250

500

-

-

500

-

150

 

150

Volumes

379

670

-

-

597

178

204

0

484

Peds

 

 

 

Flow

Speed

Dist

 

 

 

WB Only

-

-

-

500

4

40

-

-

-

 

Intersection Phasing

Phase 1 

Phase 2

G = 70 sec  

G = 40 sec

Y = 4 sec 

Y = 4 sec

R = 1 sec 

R = 1 sec

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