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Sub-problem 2a - Page 2 of 2

ID# C502A02

Sub-problem 2a: Analyzing the Effects of Pedestrians

Step 2: Results

To evaluate the effects of this signal timing strategy, we will use the Chapter 16 HCM operational methodology. Running the analysis for a 120-second cycle results in the queues, delays, and LOS values shown in Exhibit 5-24:

Exhibit 5-24. Museum Road at Reitz Union Drive (Exclusive Ped Phase)

 

EB

WB

SB

L

T

R

L

T

R

L

T

R

Volumes

379

670

-

-

597

178

204

-

484

Queues

42

28

-

-

36

36

16

-

32

Delay

168

16

-

-

19

19

72

-

188

LOS

F

B

-

-

C

C

E

-

F

Intersection

Delay

77.5

LOS

E

While pedestrians are accommodated more efficiently and more safely, the intersection performance is worsened under this scenario, at least with respect to the LOS criterion. On the southbound approach, LOS drops from C to E/F. Since pedestrians are restricted to crossing only the northbound and westbound approaches (with the northbound approach closed to vehicles), the need for an exclusive pedestrian phase is probably minimal, especially with the deterioration of the intersection efficiency using this design.

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