The report presents engineering warrants, or guidelines, to enable the East-West Gateway Coordinating Council to translate sketch planning level transportation control measures to specific projects in the St. Louis area. Warrants are documented for exclusive bus lanes on existing facilities, reversible traffic lanes, signal synchronization/modification, intersection and interchange improvements, road and bridge widening and railroad grade separation. They can be used to assist in identifying promising sites for implementing transportation control measures. In addition, analytical procedures for estimating the reduction in air pollution emissions for various transportation control measures are described. Specific procedures covered correspond to the following transportation control measures: signal synchronization, railroad grade separations, widen roads or bridges, add lanes, major new facilities, intersection and interchange improvements and simple signal turning changes.