1. Development of passenger car equivalents for freeway merging sections;Ahuja,2007
2. Livable streets;Appleyard,1981
3. The environmental quality of city streets: The residents’ View Point;Appleyard;Journal of the American Institute of Planners,1972
4. Measuring the livability of an urban centre: An exploratory study of key performance indicators;Balsas;Planning Practice and Research,2004