Bus Rapid Transit (BRT) systems have gained popularity worldwide as a cost effective alternative to far more expensive urban rail investments. High quality bus based systems also better serve the low density settlement patterns of many suburban markets and small to medium size cities due to the inherent flexibility advantages of rubber tire systems – the same vehicle that provides speedy line haul services on a dedicated bus lane or busway can morph into a feeder vehicle, collecting and distributing customers on local streets.This report reviews experiences with designing and implementing BRT systems worldwide. BRT is first defined across a spectrum of service qualitiesand costs. Global trends are next reviewed, highlighting cities and regions of the world with the most extensive and advanced systems. Relationships between urban densities and BRT cost effectiveness are noted. System designs and operations – in terms of running ways, rolling stock, route configurations, stations, fare collections, and the like – are then reviewed. This is followed by a comparison of BRT’s cost and performance relative to urban rail transit systems. Information on the cost effectiveness of heavyrail, light rail, and BRT systems relative to urban densities are also compared. The report then turns to efforts among a handful to cities to proactively promote transit oriented development (TOD) near BRT stations and along corridors. This is followed by discussions on the institutional arrangements that have been introduced to effectively manage BRT services. The report closes with discussions on BRT’s likely future given global growth projections and other pressing policy agendas in the foreseeable future.