Commuter rail agencies provide mobility to millions of people across the country, often using Amtrak infrastructure and services. Given these interactions, an abrupt Amtrak cessation could have a significant impact on commuter rail operations. Amtrak's chronic financial problems and recent budget proposals make such cessation possibility. This book was asked to examine:(1) The extent to which commuter rail agencies rely on Amtrak for access to infrastructure and services,(2) Issues that commuter rail agencies would face if Amtrak abruptly ceased to provide them with services and infrastructure access, and(3) The options available to commuter rail agencies should Amtrak abruptly cease to provide those services and infrastructure access.

This Special Issue presents an in-depth analysis of transport research commissioned by the UK Department for International Development under the High Volume Transport Programme (2017-2023). The analysis done in the period 2018-2019 contributes to the UK response to improving transport in the low-income countries in Africa and South Asia. As a result, key priorities have been identified for applied research in 2020 to make road, rail and urban transport more efficient and affordable, and all transport greener, safer and more inclusive for all users. This applied research is a vital link in making transport a sustainable lifeline for people in low-income countries, because transport gives farmers and manufacturers access to domestic and international markets and people in rural and urban areas access to schools and health services.