RFI - 20210153 Maple St Traffic Assessment

Using aerial imagery, the on street parking and bus loading area have been identified in order to assess the sight
distance considering all spaces within Maple Street to have a parked vehicle present. A car space has been
represented by an object of 1.25m while the bus is represented by a 3.5m tall object.
Plans demonstrating the sight lines under the proposed access arrangement are provided in Appendix A Sight
Distance Plans, and a summary of the findings is presented below in table
Table 4-1 - Sight Distance Check Summary

                            Direction                 Required                 Achieved            Complies
  NDD SISD                  Northbound                91m (desirable)          53m                 No
  NDD SISD                  Southbound                84m (desirable)          78m+                No+
  EDD SISD                  Northbound                65m                      53m                 No
  EDD SISD                  Southbound                61m                      78m+                Yes*
  MGSD                      Northbound                63m                      Min 63m             Yes
  MGSD                      Southbound                63m                      Min 63m             Yes
+ This distance is limited by proximity to the Garnett Street roundabout
* requires removal of on-street parking

Due to the local site geometric constraints, the SISD in both the NDD and EDD is not able to be achieved for
northbound movements. It is recommended therefore that the driveway be restricted to left-out only movements.
This is not considered an excessively prohibitive design constraint as vehicles wishing to head north have only to
head approximately 250m south to the Crystal Street roundabout to turn around which is considered an
acceptable outcome. The left-out movement will be controlled with signage and line marking at the driveway
crossover.

In order to achieve the sight distance in the southbound direction, it is necessary to remove 2 additional on-street
parking spaces (in addition to the space located in front of the proposed driveway) located between the proposed
driveway access and the bus loading bay as shown below in Figure 4-4.




         On-street parking
         spaces to be removed




Figure 4-4 – On-Street Parking Spaces to be removed



Project number 20210153                                                                                           Page 11 of 20
File 20210153 Maple St Traffic Assessment Report.docx, 2023-05-04 Revision 0

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