Abstract
Saudi Arabia intends to reduce its greenhouse gas (GHG) emissions by 278 million tonnes of CO2 equivalent annually by 2030, according to its Nationally Determined Contribution to the United Nations Framework Convention on Climate Change (UNFCCC). Among many policies it is introducing, a mass transit system and transit-oriented development are being advanced with the expectation of reducing energy consumption and GHG emissions in Riyadh. To what extent such an initiative can reduce energy consumption and GHG emissions is an important question. In this paper, a methodology is developed to systematically measure the impact of mass transit and transit-oriented development in Riyadh on energy demand.