The Scientific World Journal / 2014 / Article / Tab 3

Research Article

Developing a Web-Based Advisory Expert System for Implementing Traffic Calming Strategies

Table 3

Results from the questionnaire about the importance of the parameters.

CategoryParametersGroup 1Group 2Group 3 value
MeanSDMeanSDMeanSD

Traffic parametersSpeeding in urban streets3.800.454.600.554.400.550.074
Through traffic3.600.554.200.844.200.450.262
Accident rate4.200.843.800.844.000.710.735
Parking occupancy4.200.844.400.554.000.700.679
Heavy vehicle4.400.554.000.704.000.700.557

Geometric design parametersWidth of streets4.000.704.400.554.400.550.503
Length of streets4.200.844.000.704.600.550.420
Grade4.200.454.200.844.200.841.000
Curves4.400.554.000.714.400.550.503

Infrastructure parametersSidewalk3.800.844.200.844.400.550.462
Bike lane4.000.704.200.844.201.100.921
Crosswalk4.200.844.600.554.001.000.516
Intersection4.200.843.800.844.200.840.691
Street lighting4.000.714.600.554.200.840.420
Bus stops4.000.003.800.844.400.550.284

Land-use parametersDensity4.200.844.400.554.600.550.641
School4.400.893.600.894.000.700.351
Trip generators4.000.703.800.844.001.000.914
Residential complexes4.200.844.400.554.600.550.641