Todd Litman, Founder and Executive Director, Victoria Transport Policy Institute critically evaluates the traffic congestion methodologies in this article specially written for TrafficInfraTech. The current evaluation practices are biased in various ways that encourage decision makers to over-invest in roadway expansion and under-support other congestion reduction strategies, he says. While developing a more comprehensive congestion costing framework, this study indicates that improved congestion costing methods can lead to more efficient and equitable traffic congestion solutions, and that these planning reforms are important in both developing and developed countries.