• United Kingdom
  
• SPARK (Sharing Portal for Access to Rail Knowledge) - under Rail Safety and Standards Board Ltd, require registration (not yet tried)
• United States
  
• TRB (Transportation Research Board)
• TCRP Report 90 – Bus Rapid Transit, Volume 1: Case Studies in Bus Rapid Transit
• TCRP Report 90 – Bus Rapid Transit, Volume 2: Implementation Guidelines

Below are the academic research centers that are specializing in transportation/public transportation research in Malaysia.

• University of Malaya
• UM, CTR - Center of Transportation Research based in the Faculty of Engineering and form part of the Center for Research at Faculty of Engineering, CReFE.
• Public Transportation related researches at UM.
• Universiti Kebangsaan Malaysia
• SUTRA - Sustainable Urban Transport Research Centre
• Public Transportation related researches at UKM.
• Universiti Teknologi MARA
• MiTRANS - Malaysia Institute Of Transport
  
• Universiti Tun Hussein Onn
• Public Transportation related researches at UTHM.
• Universiti Teknologi Malaysia
• Public Transportation related researches at UTM.
• University of Nottingham, Malaysia Campus
• Public Transportation related research at UNMC
• Autonomy for five varsities -  Malaysia’s five research universities are set to receive full autonomy by 2015 ... USM, UKM, UM, UPM and UTM.