15-001261-TN01.WA

TECHNICAL MEMO
ELM STREET/PEARSONS ROAD INTERSECTION ASSESSMENT
SIDRA ANALYSIS
The traffic volumes for the Elm Street/Pearsons Road intersection has been adjusted to include current anticipated
background traffic volumes and anticipated peak hour development traffic volumes for Stages 1A and 2. Anticipated
intersection traffic volumes including the development traffic, are presented below.




The existing intersection was assessed adopting the traffic volumes shown above in SIDRA to determine intersection
performance and suitability of current configuration. SIDRA results are summarised below.

                                            Degree of       Lane Level of         95th Percentile Queue        Delay (s)
                Scenario
                                            Saturation      Service (LOS)               Length (m)
   Existing AM Peak Hour – Including                                                                              14.3
                                              0.388               B                         5.5
            Stages 1A and 2
   Existing PM Peak Hour – Including                                                                              13.9
                                              0.334               B                         6.8
            Stages 1A and 2


The SIDRA results show that the intersection in the existing configuration is operating adequately and has significant
spare capacity with inclusion of development traffic from Stages 1A and 2.




 15-001261-tn01.wa.docx                                                                                                  2