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Figure 1. 

(a) Microvascular circulation and (b) traffic microcirculation system.

Figure 2. 

Methodological framework.

Figure 3. 

Location of the study area.

Figure 4. 

(a) Road system and (b) land use distribution of the study area.

Figure 5. 

(a) Congestion during peak hours, (b) traffic safety concerns, and (c) using the road to park.

Figure 6. 

Traffic service levels assigned by TransCAD.

Figure 7. 

(a) Road network and (b) network nodes of the study area.

Figure 8. 

(a) Vehicle queue length, (b) maximum queue length, (c) number of vehicles, (d) average vehicle delay, and (e) service level of each road segment at Intersection A.

Figure 9. 

(a) Vehicle density, (b) speed, and (c) relative delay of road segments at Intersection A.

Figure 10. 

(a) Vehicle queue length, (b) maximum queue length, (c) number of vehicles, (d) average vehicle delay, and (e) service level of each road segment at Intersection B.

Figure 11. 

Vehicle density (a), speed (b), and relative delay (c) of road segments at Intersection B.

Figure 12. 

Iterative curve of the genetic algorithm.

Figure 13. 

Road network (a) before optimization and (b) after optimization.

Figure 14. 

Traffic service levels assigned by TransCAD (a) before optimization and (b) after optimization.

Figure 15. 

Comparison of traffic capacity parameters before and after optimization at Intersection A.

Figure 16. 

Comparison of traffic capacity parameters before and after optimization at Intersection B.