Att 2 - Traffic Plan

34 Elm St, Cooroy


Table 6 – Summary of EDD for trucks sight distance requirements

                          Design                       SISD (Minimum) from           Sight Distance accounting
                          Speed                                                       for vegetation removal
                                      Estimate    SISD=((DtxV)/3.6)+v^2/(254x(d+0.    (truck drivers eye 2.4 m
                          (Frontag   Longitudin    01xa)) (m) (from Austroads part      above road surface)
 Approach Direction
                           e Road     al Grade             4A section 3.2.2)
                           Speed)        (%)                                                   (m)
                                                   EDD Base Case (truck-day) (m)
                           km/h

   Exit Only Access –
  West (veh travelling      22
  south on Elm St and                       -2                  30                              36
 turning left onto Opal     (60)
           St)




The EDD analysis demonstrates that the proposed access achieves the required SISD for cars and
trucks.

2.9     Sight Distance Re-assessment after Sight Distance Improvements and EDD
Pruning and removing the low vegetation on the street tree will increase the sight distance from
the exit only access to the southbound vehicles approaching from Elm St to approximately 36m.
Assessing the SISD for vehicles on the southern access to the southbound vehicles approaching
from Elm St using the EDD method, reduces the required SISD to 30m. The revised Summary of
Sight Distances which includes the increased sight distance and reduced sight distance
requirement, is listed in Table 7 below. Table 7 is a re-assessment of Table 2 accounting for the
sight distance improvements and the EDD analysis for the Exit Only Access – West (veh travelling
south on Elm St and turning left onto Opal St).




360 Civil Consulting - Traffic Assessment                                                 Page 12 of 22