To relieve traffic congestion, improve safety and air quality shall Measure A (Riverside County Transportation Commission Ordinance No. 02-001) be approved to extend for thirty (30) years the current 1/2 cent sales tax to: Widen/improve routes 10, 15, 60, 71, 79, 86, 91, 111 and the 15/91 and 10/60 interchanges; Maintain community streets; Expand transit for seniors and persons with disabilities; Expand Metrolink commuter rail; Conduct independent financial audits and authorize bonds up to $500 million?