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Sub-problem 1c - Page 4 of 5 |
ID# C501C03 |
Sub-problem 1c:
Analysis of the Signal
with Pedestrians and Bicycles
It might also be
possible to convert this four-legged intersection into a T-intersection,
recognizing that there would be fewer conflicting movements and fewer signal
phases. In this particular case, the possibility exists to close the northbound
approach. This will allow two exclusive right-turn lanes on the southbound
approach within the proposed right of way, since no through movement is now
needed. Closing the northbound approach is something the University has been
considering for some time, and this would have the additional benefit of
removing some of the current conflicts between vehicles and
pedestrians/bikes. The results of an HCM analysis with this new lane configuration are
presented in Exhibit 5-20.
|
Exhibit 5-20. Improved
Museum at Reitz with No NB Approach and Dual SB RT Lanes |
|
|
EB |
WB |
NB |
SB |
|
L |
T |
R |
L |
T |
R |
L |
T |
R |
L |
T |
R |
|
Queue Existing |
62.4 |
29.7 |
29.7 |
0 |
38.2 |
38.2 |
1.1 |
0 |
1.1 |
16.8 |
0 |
35.4 |
|
Queue Improved |
46.2 |
29.5 |
- |
- |
38.1 |
38.1 |
- |
- |
- |
11.1 |
- |
15.9 |
|
Delay Existing |
532.5 |
17.8 |
17.8 |
0 |
22.0 |
22.0 |
27.3 |
0 |
27.3 |
77.0 |
0 |
64.9 |
|
Delay Improved |
218.6 |
17.8 |
- |
- |
21.9 |
21.9 |
- |
- |
- |
30.6 |
- |
33.1 |
|
LOS Existing |
F |
B |
B |
- |
C |
C |
C |
- |
C |
E |
- |
E |
|
LOS Improved |
F |
B |
B |
- |
C |
C |
- |
- |
- |
C |
- |
C |
|
Intersection Existing |
Delay |
110.0 |
LOS |
F |
|
Intersection Improved |
Delay |
53.4 |
LOS |
D |
The results of the
analysis show that this reconfiguration of the intersection results in
significant improvement in
the operation of the intersection. Overall delays are reduced from 110 sec/veh
(LOS F) to 53 sec/veh (LOS D).
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