AS URBANIZATION AND MODERNIZATION REACH UNPRECEDENTED LEVELS, ROAD CONGESTION HAS BECOME A MODERN DAY MENACE. HEAVY TRAFFIC IS ASSOCIATED WITH AIR POLLUTION, SAFETY RISKS, AND LOSSES IN TERMS OF ACCESSIBILITY, ECONOMIC COMPETITIVENESS, SUSTAINABLE GROWTH AND SOCIAL COHESION. IF WE ARE DETERMINED TO MAKE OUR CITIES ATTRACTIVE AND SUSTAINABLE, WE MUST RESPOND TO THESE CHALLENGES