Fig 1.
The definition of index variables.
(a) Global index of intersection arms. (b) Local index of vehicle movements. (c) Local index of approach lanes.
Fig 2.
(a) The organization of left-turn and through phases. (b) The organization of right-turn phases.
Table 1.
The lane utilization adjustment factor specified by HCM.
Fig 3.
The dual-ring phase scheme for shared left-turn and through movements.
(a) one barrier. (b) two barriers.
Fig 4.
The situations of lane function configurations.
(a) Exclusive lanes only. (b) Shared through-right lane included. (c) Shared left-through lane included. (d) Both shared left-through and through-right lanes included. (e) Shared left-through-right lane included.
Fig 5.
A complete example of the binary encoded solution for the model.
Fig 6.
The overall process of designed genetic algorithm.
Fig 7.
The process of the lane convertor module for each intersection arm.
Fig 8.
The process of the flow calculation function module for each intersection arm.
Table 2.
The heavy vehicle ratio of example intersection.
Fig 9.
The physical layout of example intersection.
Table 3.
Six flow volume combinations for example intersection.
Fig 10.
The lane allocation and signal control plans of six flow volume combinations.
(a) Combination Ⅰ. (b) Combination Ⅱ. (c) Combination Ⅲ. (d) Combination Ⅳ. (e) Combination Ⅴ. (f) Combination Ⅵ.
Fig 11.
Convergent curves of the designed GA.
(a) Combination Ⅰ. (b) Combination Ⅱ. (c) Combination Ⅲ. (d) Combination Ⅳ. (e) Combination Ⅴ. (f) Combination Ⅵ.