10. APP E. Traffic Impact Assessment Report

 

PEKOL TRAFFIC & TRANSPORT

4.4.2 Eumundi Road / Eenie Creek Road Roundabout

The SIDRA analysis of the Eumundi Road / Eenie Creek Road roundabout was undertaken using the
intersection layout as shown in Figure 2.3. The results of these analyses are attached in Appendix C, and

are summarised in Table 4.6.

Table 4.6: EUMUNDI ROAD / EENIE CREEK ROAD ROUNDABOUT

Evening Peak
2014 Existing 66% 8.6 Eumundi Road (North) — All Movements
2017 Pre Development 70% 10.0 Eumundi Road (North) — All Movements
2017 Post Development 72% 11.0 Eumundi Road (North) — All Movements
2027 Pre Development 86% 19.6 Eumundi Road (North) — All Movements
2027 Post Development 90% 23.1 Eumundi Road (North) — All Movements

Saturday Peak
2014 Existing 61% 5.9 Eumundi Road (South) - Ahead & Right
2017 Pre Development 64% 6.7 Eumundi Road (South) - Ahead & Right
2017 Post Development 64% 7.6 Eumundi Road (South) - Ahead & Right
2027 Pre Development 72% 11.2 Eumundi Road (North) - All Movements
2027 Post Development 77% 13.1 Eumundi Road (North) - All Movements

Table 4.6 demonstrates that the Eumundi Road / Eenie Creek Road roundabout is expected to experience
‘very good’ operations during the 2017 weekday evening pre-development and post-development peak
periods. Both of the 2027 weekday evening peak hour scenarios are expected to experience ‘acceptable’

conditions (according to SIDRA).

All of the 2017 Saturday peak hour development scenarios are predicted to operate with an ‘excellent’
level of service, with both the 2027 pre and post development scenarios experiencing “very good”

operations.

Both of the weekday evening 2027 peak hour scenarios exceed the DTMR limits of acceptable operations
for roundabouts (at 85%). However, the impact of the development traffic on this roundabout are
relatively minor with an increase in the degree of saturation of less than 5% and only small increases in

95" percentile queues.

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