TRANSPORTATION STUDY

4.3.2 Sixth Street & Tenth Line
The intersection of Sixth Street with Tenth Line operates acceptably as a two-way stop through 2020
but will experience poor conditions (LOS F with long delays) by 2030, given the background volumes.
As previously noted the intersection is recommended for signalization. The intersection operations
have been further investigated under a roundabout scenario and an all-way stop scenario for the 2030
horizon. The results are provided in Table 19.
Table 19: Roundabout vs. Conventional - Sixth Street & Tenth Line
2030 - Background
Weekday
AM Peak Hour
Weekday
PM Peak Hour
Intersection and Movement Control
delay LOS v/c delay LOS v/c
EB stop 13 B 0.47 23 C 0.72
Sixth Street & WB stop 12 B 0.51 23 C 0.77
Tenth Line NB stop 12 B 0.35 16 C 0.53
SB stop 12 B 0.34 16 C 0.53
EB
13 B 0.49 14 B 0.61
WB 16 B 0.66 19 B 0.77
Sixth Street &
signal
Tenth Line
NB 9 A 0.22 11 B 0.31
SB 9 A 0.26 12 B 0.40
overall signal 12 B 0.43 15 B 0.58
EB
7 A 0.31 10 A 0.44
WB 8 A 0.37 10 B 0.49
Sixth Street &
roundabout
Tenth Line
NB 7 A 0.23 9 A 0.32
SB 7 A 0.22 9 A 0.32
The v/c ratio is not provided for the overall roundabout operations.
overall roundabout 7 A - 10 A -
The all-way stop scenario, although offering good levels of service, is the least efficient option. The
main drawback of an all-way stop is that it interrupts the flow of traffic in all directions. Although this
improves conditions for the minor street, it creates delay for traffic travelling on the major street as the
traffic is required to stop regardless if there is no traffic present on the minor street. In comparison, a
semi-actuated signal only calls the green phase for the minor street when traffic is present, thus only
stopping traffic on the major street when necessary. A roundabout, by employing a yield to the left
operation, allows traffic to continue flowing in all directions. The all-way stop is also limited by way of
further improvement as the approaches are constrained to one lane while roundabouts and signalized
intersections are able to accommodate multi-lane approaches, should such be required. Despite the
Transportation Study
Town of Collingwood
Page 32
July 9, 2012