Combined with microscopic traffic simulation software

HSM road traffic accident prediction model

the Comprehensive Modal Emissions Model (CMEM) and vehicle noise emission model and the attenuation model

in addition to a consideration of social cost

a comprehensive method was proposed to establish the dynamic traffic simulation model of signal intersection with and without left-turn waiting zone(LWZ)

and then quantitatively evaluate the LWZ from the aspect of traffic efficiency

fuel consumption

traffic safety

air pollution

greenhouse effect and noise pollution. At last

the method was applied to a real intersection of Guangzhou

and the results show that the average comprehensive cost of the intersection with the LWZ is reduced by nearly 25%. The example had proved that setting LWZ can effectively promote traffic efficiency at the intersections

but leads to the increase of air pollution and noise pollution. The method can evaluate the value of LWZ comprehensively and effectively

and be a consultation for road planning.