Attachment 9 - Traffic Engineering Report

6.4.1.2 Cooroy golf clubhouse – Diverted Trips
Traffic generation for the proposed clubhouse has been conservatively estimated using information collated
from traffic counts previously undertaken by TTM at similarly sized golf courses with accompanying
clubhouses. This information has been used to supply a relative trip rate per hole, which in turn has been
used to estimate the level of traffic generation for the proposed development during the weekday AM/PM
peak-hour periods.

The peak traffic generation for the surveyed 18-hole golf course (and relative trip rate per hole) obtained
from the traffic counts are as follows:

•    AM peak-hour - 130vph (7.2vph/hole); &

•    PM peak-hour - 94vph (5.2vph/hole).

Based on the application of these trip rates, it is estimated that the proposed clubhouse and golf course will
generate the following additional trips:

•    AM peak-hour - 130vph; &

•    PM peak-hour - 94vph.

The undertaken survey indicated that 52% of vehicles were inbound in the AM peak hour period, with the
remaining 48% outbound. 25% of vehicles were surveyed to be travelling inbound in the PM peak hour
period with the remaining 75% travelling outbound.

6.4.1.3 Summary
Based on application of the peak hour and daily traffic generation rates outlined above, the overall traffic
generation of the development will be as shown in Table 6.1.

Table 6.1: Development Traffic Generation – Summary
 Land Use            Extent            Generation Rate                         AM Peak Hour              PM Peak Hour
 Relocatable         232 dwellings     0.189vph/dwelling in the AM peak hour   44vph (23 in + 21 out)    29vph (16 in + 11 out)
 Dwelling Lots                         0.124vph/dwelling in the PM peak hour
 Golf                18 holes          7.2vph/hole in the AM peak hour         130vph (68 in + 62 out)   94vph (23 in + 70 out)
 Clubhouse                             5.2vph/hole in the PM peak hour
 Total                                                                         174vph (91 in + 83 out)   120vph (39 in + 81 out)

6.4.2        Estimated Development Traffic Distribution
Directional distribution of development traffic is assumed to be consistent with existing traffic distribution as
exhibited in the traffic survey data. It has been assumed that 80% of the peak hour traffic will be inbound
towards the Cooroy township, with the remaining 20% outbound during both the AM and PM peak hours.

Figure 6.2 details the expected trip distribution for the relocatable dwellings whilst Figure 6.3 details the
expected distribution of the proposed clubhouse.




Site: Lot 2 & 3 Myall Street, Cooroy                                                                                          19
Reference: 19BRT0357