DTCI led these studies for GCT Canada to provide expert reports to be submitted to the Impact Assessment Agency of Canada and the B.C. Environmental Assessment Office.

The road impact analysis was undertaken in collaboration with IBI Group (now Arcadis) and Licker Geospatial Consulting. The scope of the project included updated forecasts of West Coast, Port of Vancouver and Deltaport container traffic; forecasts of Deltaport and DP4 road traffic, including number of trucks and truck movements, type, size, destination (imports/exports), and capacity of trucks, approximate timing of arrivals and departures, and increases relative to existing traffic volumes along various segments of highway in the road transportation area; forecast of types of cargo to be carried including hazardous materials or hazard classes, and origin and destination of inbound and outbound trucks; description and mapping of the existing road network in the Lower Mainland including a description of truck carriers and routes; forecasts of total traffic to confirm the relative proportion of trucks associated with the project compared to overall traffic beyond the road transportation area, north to include the City of Richmond, and east to an outer extent of the City of Hope; and detailed traffic impacts at locations where the percentage of project-related truck volume is greater or equal to 1% compared to overall traffic.

The rail impact analysis was undertaken in collaboration with Hooper Engineering and Licker Geospatial Consulting. The geographic extent of rail transportation incidental to the project includes the rail lines that will be used by project-related rail traffic between the Deltaport terminal, up to Spuzzum, B.C. at the northern boundary of S’ólh Téméxw or Stó:lō Territory. The scope of the rail study includes forecasts of Lower Mainland cargo movements and total train traffic; information on origins and destinations of trains and Dangerous Goods shipments; estimates and forecasts of wait times at road and public grade crossings; a review of relevant statutes, polices and frameworks; accidents and assessment of risk due to incremental DP4 rail traffic along the Rail Transportation Route; emergency response; and potential mitigation measures.

The deadline for completion of the Environmental Assessment has been extended to May 31, 2027.