Impact analysis surveys

Notes on survey methodology

Guangzhou BRT impact analysis

Yichang BRT impact analysis

Lanzhou BRT impact analysis

All attitudinal surveys all have 5 categories: Very good / good / neutral / bad / very bad, or the corresponding strongly agree / agree / neutral / disagree / strongly disagree.

Guangzhou surveys

BRT and control (comparison) corridor locations

Sample sizes: BRT corridor interviews

 Bus ridersPedestriansCyclistsCar drivers
Dec. 2007 (before BRT)985   
Dec. 2008 (before BRT)768   
Dec. 2009 (before BRT)1,575417320223
Aug. 2010 (with BRT)869313295203
Dec. 2010 (with BRT)1,269318319246
Mar. 2012 (with BRT)1,053   
Dec. 2012 (with BRT)1,067321318240
Dec. 2013 (with BRT)1,147308396235
Dec. 2014 (with BRT)1,037306322321

Sample sizes: Control (comparison) corridor interviews

 Bus ridersPedestriansCyclistsCar drivers
Dec. 2009 (before BRT)498221236234
Aug. 2010 (with BRT)486246295203
Dec. 2010 (with BRT)490283279246
Mar. 2012 (with BRT)542   
Dec. 2012 (with BRT)570286276236
Dec. 2013 (with BRT)538290260295

Lanzhou surveys

BRT and control (comparison) corridor locations

Sample sizes: BRT corridor interviews

 Bus ridersPedestriansCyclistsCar drivers
Jul. 2011 (before BRT)1,015316324313
Dec. 2011 (before BRT)1,068314302304
Oct. 2012 (before BRT)1,002310360329
Mar. 2013 (with BRT)1,036317310291
Mar. 2014 (with BRT)1,059335361296
Mar. 2015 (with BRT)1,202304300296

Sample sizes: Control (comparison) corridor interviews

 Bus ridersPedestriansCyclistsCar drivers
Dec. 2011 (before BRT)551267257254
Nov. 2012 (before BRT)520245244253
Mar. 2013 (with BRT)557284242262
Mar. 2014 (with BRT)618285258250
Mar. 2015 (with BRT)560256250250

Yichang surveys

BRT and control (comparison) corridor locations

Sample sizes: BRT corridor interviews

 Bus ridersPedestriansCyclistsCar drivers
Dec. 2012 (before BRT)1,026300286256
Jul. 2014 (before BRT)1,043306300308
Dec. 2014 (before BRT)1,258301324357
May 2015 (before BRT)1,286289303300
Aug. 2015 (with BRT)1,362309327302

Sample sizes: Control (comparison) corridor interviews

 Bus ridersPedestriansCyclistsCar drivers
Dec. 2012 (before BRT)905205220208
Jul. 2014 (before BRT)868201201205
May 2015 (before BRT)1,002200200200