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Sub-problem 2c - Page 3 of 3 |
ID# C102C03 |
Sub-problem 2c: Analysis of the
U.S. 95 Arterial
Step 2. Results
The HCM urban streets methodology produces travel speed
and level of service for each arterial segment, as well as for the entire
urban street. But to get an idea of the effect of a signal at the Styner-Lauder Avenue intersection, we must also estimate the speed and level
of service for the urban street, without the new signal at Styner-Lauder.
Exhibit 1-24 summarizes these results.
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Exhibit
1-24. U.S.95
Urban Street Analysis (Dataset12,
Dataset13) |
|
Segment |
With signal at
Styner-Lauder
Travel speed (LOS) |
Without signal at
Styner-Lauder
Travel speed (LOS) |
| Sweet to Styner-Lauder |
22.4 mi/hr (C) |
29.3 mi/hr (B) |
| Styner-Lauder to Palouse River Drive |
27.1 mi/hr (C) |
| Overall-urban street |
25.4 mi/hr (C) |
29.3 mi/hr (B) |
We can see that the addition of the signal at Styner-Lauder
reduces the travel speed by about 4 mph, or about 13 percent. The
level of service is reduced from B, without the signal, to C, with the
signal.
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