Interval 1630 to 1645 1645 to 1700 1700 to 1715 1715 to 1730 Total Northbound T 207 230 241 238 916 L 53 55 52 49 209 Movement Through Through & Right Left Right E R 16 19 14 T▬▬▬▬▬▬▬▬▬▬▬ a 19 68 Southbound T 221 Table 2. Saturation Flow Rates (veh/h) Sat. Flow Per Lane 1900 1850 1700 1500 190 L 26 66 29 83 43 57 164 815 159 272 190 R34435 214 L 65 37 67 Eastbound T R L 159 49 16 159 45 21 188 52 28 171 55 23 677 201 88 - Westbound T 86 ∞x 84 98 81 349 ∞ R 24 43 46 35 148
Interval 1630 to 1645 1645 to 1700 1700 to 1715 1715 to 1730 Total Northbound T 207 230 241 238 916 L 53 55 52 49 209 Movement Through Through & Right Left Right E R 16 19 14 T▬▬▬▬▬▬▬▬▬▬▬ a 19 68 Southbound T 221 Table 2. Saturation Flow Rates (veh/h) Sat. Flow Per Lane 1900 1850 1700 1500 190 L 26 66 29 83 43 57 164 815 159 272 190 R34435 214 L 65 37 67 Eastbound T R L 159 49 16 159 45 21 188 52 28 171 55 23 677 201 88 - Westbound T 86 ∞x 84 98 81 349 ∞ R 24 43 46 35 148
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
Solve problem 3 ple
Transcribed Image Text:4
1
S
S
S
5
6
7
8.
Table 1. Movement Counts at the Intersection (veh/15 min)
Northbound
Southbound
Eastbound
Westbound
Interval
L
R
T
R
1630 to 1645
53
207
16
26
221
35
65
159
49
16
86
24
55
230
19
66
190
43
67
159
45
21
84
43
1645 to 1700
1700 to 1715
52
241
14
29
190
44
83
188
52
28
98
46
1715 to 1730
49
238
19
43
214
37
57
171
55
23
81
35
Total
209
916
68
164
815
159
272
677
201
88
349
148
Table 2. Saturation Flow Rates (veh/h)
Movement
Sat. Flow Per Lane
Through
Through & Right
1900
1850
Left
1700
Right
1500
2.
Transcribed Image Text:Problem 3:
Give a reasonable sequence of phases for this intersection, considering that left
turn volume is moderate on the NB, SB, and EB approaches and is weak on the WB approach.
Pedestrian traffic does not warrant a pedestrian phase here.
Problem 4:
Compute delays and determine LOS for the NBTH and NBLT lane groups at this
intersection. Assume a full-actuated control with unit extension (passage time, PT) of 4 seconds
and absence of filtering/metering at the neighboring signalized intersections. Effective green
signal times are.
= 33.2s
8 NB,TH
=17.3s
8 NB,LT
and Cycle length is: C = 125 s
3.41m
3.99m
4,02m 7.99m
3.81m 3.82m
X Street
1.38m
3.03m
5.73m
- 5.29m
3.48m
1.55m
3.26m
3.21m
3,47m
4.51m
6.70m
3.19m
1,20m
3.44m
3,90m
3.6
3.87m
.09m
4.06m
4.51m
Y Street
Figure 1. Dual-Ring Phasing, X St. and y Street (North is up)
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