Traffic Assessment - Renfrewshire Council

4.22 The updated Linsig analysis for the base situation indicates the junction will operate within capacity
during the weekday PM peak period. The results for the base plus development traffic
demonstrates the junction will continue to operate within capacity with the proposed 6,000m 2
foodstore and there will be a negligible increase in terms of queues.
A8 Greenock Road / Kingston Road
4.23 The 2008 Transport Assessment identified this junction required to be upgraded from a priority
controlled junction to traffic signal control, in order to mitigate the weekday AM peak from the
consented Dargavel Masterplan. It is understood the newly installed traffic lights at this junction will
be operational sometime early 2013.
4.24 Using phase and intergreen times from the controller specification form (TR2500), we have
undertaken an updated base analysis and a base plus development analysis using Linsig Version
3. The results of each assessment for the weekday PM peak period are provided in Table 4.4
below.
Table 4.4 A8 Greenock Road / Kingston Road
Link
Number
Base Base plus Dev
Lane Description DoS (%) Max Q DoS (%) Max Q
1/1 Greenock Road (West) Left Ahead Right 41.3% 6 46.1% 8
2/1 Kingston Road Right Left 63.9% 5 76.9% 7
3/1 Greenock Road (East) Ahead Right Left 63.1% 12 80.0% 17
DoS% = Degree of Saturation where 90% is considered to be the practical capacity
4.25 The results in Table 4.4 demonstrate the newly installed traffic signals will operate well within
capacity following the increase on traffic volumes associated with the 6,000m 2 foodstore proposal
for the Dargavel Village Centre.
A8 Greenock Road / Station Road
4.26 While there is potential for vehicle trips to access the village core and the foodstore via the northern
access road from the A8 (access strategy for the consented Masterplan), Renfrewshire Council has
requested the Transport Assessment considers 100% of the additional retail vehicle trips accesses
the village core via the A8 Greenock Road / Station Road junction. This is principally a 3-arm
priority controlled junction, although it is noted a commercial property takes access from Greenock
Road opposite Station Road. As noted in Chapter 2, Renfrewshire Council have advise visibility
from Station Road onto Greenock Road is substandard.
4.27 Assuming 100% of additional trips use the Station Road junction, the results of the PICADY
analysis are provided in Table 4.5 below.
Job No Report No Issue no Report Name Page
SCT3526 1 1 Dargavel Village
Proposed Village Core Development
21