This post from The City Fix looks at how holidays cause mass movements of people, especially Muslims in Indonesia, and what impact those movements can have on transportation systems.
For Indonesia, the end of Ramadan is a national holiday, and causes major congestion. Some are trying to think about how to mitigate these problems.
"Similar to city-to-rural migration in China for the Spring Festival, the annual Muslim holiday in Indonesia is also a way to reinforce social ties and bring money from the city to the countryside. But given the growth of a city like Jakarta, it seems impossible for cities to deal with these mega-events.
John Ernst, the vice director of Southeast Asia for the Institute for Transportation and Development Policy, whose work with ITDP has centered on TransJakarta, a bus rapid transit system of 10 lines that provides service to several intercity bus stations, shared some information on the government response to the holiday."
FULL STORY: Cities in Flux: Pilgrimage in Jakarta Stifles Movement Once a Year

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City of Albany
UCLA Lewis Center for Regional Policy Studies
Mpact (formerly Rail~Volution)
Chaddick Institute at DePaul University
City of Piedmont, CA
Great Falls Development Authority, Inc.
HUDs Office of Policy Development and Research