The Freight Analysis Framework (FAF) modeling tool can show how truck traffic will shift regionally or nationally in response to major road closures. The tool works by removing the closed or damaged highway from the networks, and recommending alternate available routes.
'We expect this tool to be critical in the coming months in helping states know where freight traffic is likely to increase if a hurricane closes major roads,' said FHWA Administrator Victor Mendez, in a statement. 'It can help states plan for alternatives when major freight routes are closed, helping businesses continue delivering their products following a natural disaster.'
During the recent flooding that affected a major freight route, Interstate 40 in Arkansas, the FHWA used the modeling tool to project potential freight movement changes that affected six Southeast states and analyzed where long-haul freight trucks might detour during the I-40 closure.
'Knowing the changes in regional freight travel patterns in times of crisis can allow states to set up detours, prepare alternative routes to handle more traffic, and adjust signals and message signs. It can help ensure traffic continues to flow smoothly and safely for people on the highways,' the Transportation Department agency said.
More details are available here.
