Traffic Structure Optimization in Historic Districts Based on Green Transportation and Sustainable Development Concept

Table 4

Operational indicators of traffic flow under the two travel modes.

	Programme 1			Programme 2			Current traffic structure
Service level classification	A	B	C	A	B	C	A	B	C
Road section (length) (%)	82.41	13.15	4.44	21.15	20.98	15.37	18.78	19.62	14.33
Intersection (number) (%)	78.53	12.76	8.71	22.51	21.42	14.69	19.24	19.73	13.96