Mathematical Problems in Engineering / 2015 / Article / Tab 1

Research Article

Intersection Group Dynamic Subdivision and Coordination at Intraregional Boundaries in Sudden Disaster

Table 1

Traffic flow performance in intraregional boundaries under different traffic signal control strategies.

Traffic flow statusStatistics itemDelaySpeedSaturationQueen
Mean valueSTDEVMean valueSTDEVMean valueSTDEVMean valueSTDEV

FreeSP4.2271.30648.135.5650.51970.152913.225.714
RP4.2121.26348.245.3970.52330.155712.135.512
BP4.1651.26648.565.4740.51320.153710.814.273
REDEV I%−1.467−3.0630.8934−1.635−1.2510.5232−18.23−25.22
REDEV II%−1.1160.23750.66331.427−1.930−1.285−10.88−22.48

SmoothSP28.676.09441.938.8410.68080.172135.694.37
RP25.435.87342.177.0640.66370.167334.663.25
BP16.843.25743.065.5630.65510.102424.376.45
REDEV I%−41.26−46.552.695−37.08−3.775−40.50−31.7247.60
REDEV II%−33.78−44.542.111−21.25−1.296−38.79−29.6998.46

CongestionSP44.273.71421.273.1520.93940.127150.586.991
RP41.324.25723.613.2310.90510.110447.159.342
BP30.273.33528.394.1730.86090.096434.663.25
REDEV I%−31.62−10.2033.4732.39−8.356−24.15−31.47−53.51
REDEV II%−26.74−21.6620.2529.16−4.883−12.68−26.49−65.21

Note. STDEV means standard deviation. REDEV means relative deviation. REDEV I% = (BP − SP) 100/SP. REDEV II% = (BP − RP) 100/RP.

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