|
| |
|
Sub-problem 4b - Page 4 of 6 |
ID# C404B04 |
Sub-problem 4b: Off-Peak Operational Analysis
of Alternate Route 7
|
Exhibit 4-68. Westbound Freeway Facilityt Analysis
|
|
FACILITY
TITLE (WB Facility) |
S01 |
S02 |
S03 |
S04 |
S05 |
S06 |
S07 |
S08 |
S09 |
S10 |
S11 |
|
Type (B,W,
ONR,OFR) |
B |
OFR |
B |
ONR |
ONR |
B |
OFR |
OFR |
B |
ONR |
B |
|
Length (ft) |
2,000 |
1,500 |
1,610 |
1,415 |
1,500 |
13,245 |
1,500 |
1,730 |
900 |
1,500 |
2,225 |
|
Number of
lanes |
4 |
4 |
2 |
2 |
3 |
3 |
3 |
2 |
1 |
2 |
2 |
|
Free flow
speed (mph) |
55 |
55 |
55 |
55 |
55 |
55 |
55 |
55 |
55 |
55 |
55 |
|
Speed (mph) |
55.0 |
55.0 |
55.0 |
49.7 |
51.0 |
55.0 |
50.6 |
50.0 |
54.4 |
50.6 |
54.8 |
|
Density (veh/mi/ln) |
10.5 |
10.4 |
12.1 |
27.6 |
22.5 |
22.0 |
21.4 |
18.5 |
23.1 |
20.1 |
19.3 |
|
Segment
Capacity (vph) |
8,750 |
8,750 |
4,375 |
4,375 |
6,565 |
6,565 |
6,565 |
4,375 |
2,190 |
4,375 |
4,375 |
|
Segment
Demand (vph) |
2,310 |
2,310 |
1,335 |
3,135 |
3,630 |
3,630 |
3,630 |
1,990 |
1,260 |
2,115 |
2,115 |
|
Segment
Volume (vph) |
2,310 |
2,310 |
1,335 |
3,135 |
3,630 |
3,630 |
3,630 |
1,990 |
1,260 |
2,115 |
2,115 |
|
d/c ratio |
0.26 |
0.26 |
0.30 |
0.72 |
0.55 |
0.55 |
0.55 |
0.45 |
0.58 |
0.48 |
0.48 |
|
v/c ratio |
0.26 |
0.26 |
0.30 |
0.72 |
0.55 |
0.55 |
0.55 |
0.45 |
0.58 |
0.48 |
0.48 |
|
On-Ramp
Demand (vph) |
|
|
|
1,800 |
495 |
|
|
|
|
855 |
|
|
On-Ramp
Volume (vph) |
|
|
|
1,800 |
495 |
|
|
|
|
855 |
|
|
On-Ramp
Delay (veh-hrs of delay) |
|
|
|
0 |
0 |
|
|
|
|
0 |
|
|
On-Ramp
Queue Length (ft) |
|
|
|
0 |
0 |
|
|
|
|
0 |
|
|
Off-Ramp
Demand (vph) |
|
980 |
|
|
|
|
1,640 |
730 |
|
|
|
|
Off-Ramp
Volume (vph) |
|
980 |
|
|
|
|
1,640 |
730 |
|
|
|
|
Vehicle LOS |
B |
B |
B |
D |
C |
C |
C |
B |
C |
C |
C |
Discussion:
 Spend several
minutes reviewing the data in Exhibits 4-67 and 4-68. What can you learn about the
performance of the facility from these data? When you are ready, proceed to
the next page.
[
Back ] [
Continue ] with Sub-Problem 4b |
|
