Response to Information Request · MCU13/0251

Traffic

2. Please amend the Traffic Impact Assessment, so the traffic analyses are based on current
   traffic counts and data, including data in respect of traffic operating speeds and headways.

3. Provide a preliminary geometric design (horizontal and vertical geometry), consistent with
   Council’s reasonable design requirements (David Low Way is a Council controlled road not
   a state controlled road) for the site access works, taking particular account of pedestrian
   crossing and bus stop facilities. It is recommended that discussions occur with Council
   officers prior to finalisation of any such planning. It should be noted that particular
   difficulty is seen with the two-stage right turn proposal because of visibility issues for right
   turning drivers sheltering in the median in the range 110 to 160 degrees (behind them to
   the left).

Attached is a further report by Holland Traffic Consulting (refer Attachment 2 and 2A) that
provides a revised traffic management plan for the intersection at David Low Way and the
Unnamed Road. The traffic experts have agreed to the proposed design (refer Attachment
2A) and to the improvements to the bus stop, that will allow for the safe operation of the
proposed development.

The changes to the intersection include the following:

      
    median works to allow for a right turn entry into the Unnamed Road; and
      
    median works to allow for a left turn exit only from the Unnamed Road.

The report states that …prohibition of the right turn exit from the Unnamed Road to the south
along David Low Way will overcome any capacity concerns at the intersection. 1 Vehicles
leaving the site will turn left into David Low Way and use the roundabout a short distance to
the north. The traffic expert has considered the capacity of the Heron Street roundabout and
confirms that the operational capacity with the proposed development is well below the
capacity of the roundabout during peak periods2.

The bus stop and cycleway requirements have also been incorporated into the design, which
significantly improve the current situation. These improvements are discussed further below.

Bus Stop

4. Provide plans that accurately show all land dedications required to accommodate:

           a) the geometric positioning of an Intermediate (Indented) Bus Bay to the David Low
              Way frontage of the site, generally in accordance with TransLink Transit Authority
              - Public Transport Infrastructure Manual, Drawing TL-I02.

           b) A 2.5m wide off-road shared use pathway for pedestrian and cycle use to the David
              Low Way and Grebe Street frontages, with a minimum of 0.5m clearance from
              obstructions / hazards such as power poles, light poles, bus shelter, fencing, and
              trees. Please note that the 2.5m wide pathway must run behind the proposed bus
              shelter mentioned above, with a narrower 2.0m wide pathway connection to the


1
    Holland Traffic Engineering, dated 24 March 2014, page 1
2
    Holland Traffic Engineering, dated 24 March 2014, page 3



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