Opus International Consultants (NSW) Pty Ltd - Transport for NSW ...

Mount Druitt Commuter Car ParkTraffic, Transportation and Access Impact Assessment1. Executive Summary1.1. ProposalOpus International Consultants have been commissioned by Transport Construction Authority(TCA) to undertake a Traffic, Transport and Access Impact Assessment (TT&A IA) for the MtDruitt car park development as part of the NSW Government‟s Commuter Car Park andInterchange Program (CCPIP).As part of the CCPIP, TCA is investigating a number of sites, including at Mt Druitt, to improvethe availability of convenient and secure commuter car parking at railway stations toencourage public transport use.This assessment investigates the impacts of the new multi-storey commuter car park at MtDruitt station on the surrounding traffic, transportation and accesses.The car park is proposed to be located on the North West corner of North Parade and MountStreet approximately 300 metres from the Mount Druitt Railway Station and BusInterchange.The proposed car park is a two level structure for approximately 220+/- 10 vehicles.Because the number of car spaces to be included in the development could be220+10=230, it was appropriate to model and assess the impact based on the largest likelynumber of spaces (230) to cover the worst case scenario.It is proposed that a single entrance and exit to the car park be located on North Parade. Theentry and exit is to be left in and left out only onto North Parade because the existing medianprohibits right turn movements.1.2. Operational ImpactsTraffic counts, queues, and signal phase data were collected to understand the existingconditions and to understand the proposals impact on the sites surrounding intersections.SIDRA Intersection 5.0 (SIDRA) models for the surrounding intersections were used toestimate existing and future intersection Level of Service (LOS) and average delay taking intoaccount of the traffic generated by the proposed multi-story car park. As necessary,mitigation measures have been identified to reduce the impacts of traffic to acceptablelevels.Origin and Destination (O-D) survey was undertaken at the station:The observed peak hours on the network are from 0800-0900 during the AM Peak and1630-1730 during the PM Peak;Key results of the traffic models include:The modelling indicates that currently there are no operational issues with any of theidentified intersections. The right turn from Luxford Road onto Mount Street being theonly movement operating at capacity with a LOS D. The intersections themselvescurrently operate with a LOS B or better.On the eastbound side of North Parade the current on-street car parking will restrict sightdistances to the proposed car park entrance and exit. These spaces will be removed fromJirrang Close to Mount Street.The median located along North Parade results in the site‟s vehicle access and egress beingvia a left in / left out arrangement. This significantly reduces the potential points of conflictbetween pedestrians and motorists in comparison to a full movement vehicle accessscenario. The footpath adjacent to the frontage of the CCP is wide and clear of kerbsideparking and other obstructions ensuring good visibility for both pedestrians and motorists.CCPP-0843-RW-7291-F.docx Page 1 of 46Status: Final CDR