Urban Traffic Signal System Control Structural Optimization Based on Network Analysis

Table 1

Intersection importance evaluation index (18:00-19:00, October 17, 2011).

No. of node	Intersection name	Node degree	Node traffic flow	Node betweenness
1	Nanhuxiyuan South	2	1933	0.0023
2	Futongxidajie South	2	3123	0.0116
3	Wangjingxilu-Jinyuguoji	2	2971	0.0105
4	Nanhu-Zhongyuan Ertiao West	2	3234	0.0128
5	Wangjingxilu-Nanhuzhongyuan	3	2557	0.0302
6	Huguang Beijie West	3	3410	0.0372
7	Heyin West	3	1918	0.0418
8	Wangjing Xilu North	3	2249	0.0221
9	Lizexierlu	3	1311	0.0035
10	Lizexi Street	3	1676	0.0279
11	Nanhu Beilu North	3	3573	0.0232
12	Huguangbei Street	3	7067	0.0232
13	Huguangzhongjie East	3	5012	0.0256
14	Hongtaixijie West	4	6828	0.0383
15	Heyinzhonglu West	4	6642	0.0476
16	Lizezhongjie West	4	6325	0.101
17	Wangjing Beilu-Guangshunbeidajie	3	5034	0.0604
18	Lizezhongyilu	3	3197	0.0139
19	Lizezhongyilu South	3	2154	0.0116
20	Lizezhongerlu	3	3812	0.0186
21	Lizezhongjie	4	2632	0.0453
22	Xiyangzhonglu Mid	4	1173	0.0778
23	Heyinzhong	3	2213	0.1626
24	Hongtaixi Street	2	3384	0.0383
25	Hongchang Road	3	1588	0.0581
26	Hongchang Peds	2	1634	0.0767
27	Wangjingxiyuansanqu Peds	2	1856	0.072
28	Furongjie-Fuanlu	1	1188	0.0023
29	Wangjingjie-Fuan	3	3249	0.1463
30	Fuanlu-Futongxidajie	2	2855	0.0778
31	Fuanlu-Guofengbeijing	1	813	0.0023
32	Lizedongerlu	3	1587	0.0232
33	Lizedong Street	4	1070	0.1498
34	Lizedongerlu South	3	1645	0.0581
35	Xiyang East	2	1177	0.0035
36	Wangjing Beilu East	3	842	0.0302