## 4 Empirical Research
### Chongqing's Transportation Infrastructure Planning Based on the Coordinate Planning Method
#### 4.3.3 The Results of Coordinate Planning  
After putting each path in Table 1 into the calculation model, the average travel time AUT and _puf_ of users in the transportation infrastructure network is calculated as the basis for evaluating the importance of a single path project. The calculation results are shown in Table 4.  
In transportation, an error of less than 1 min is acceptable. The new routes will be added to the existing network model for subsequent optimization to improve the model complexity, and 1 \(\times\) 10\({}^{9}\) is selected as the number of simulations to ensure sufficient computational redundancy in this study. #### 4.3.3 The Results of Coordinate Planning  
After putting each path in Table 1 into the calculation model, the average travel time AUT and _puf_ of users in the transportation infrastructure network is calculated as the basis for evaluating the importance of a single path project. The calculation results are shown in Table 4. \begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Number** & **Interval** & **AUT (min)** & _Puf_ (Frequency) \\ \hline
0 & Initial network & & 256 & 0 \\
1 & Chongqing & \(\leftarrow\)\(\rightarrow\) & Dazu & 254 & 5811 \\
2 & Chongqing & \(\leftarrow\)\(\rightarrow\) & Yongchuan & 241 & 19,849 \\
3 & Chongqing & \(\leftarrow\)\(\rightarrow\) & Fuling & 246 & 12,150 \\
4 & Fuling & \(\leftarrow\)\(\rightarrow\) & Fengdu & 241 & 16,679 \\
5 & Fengdu & \(\leftarrow\)\(\rightarrow\) & Zhongxian & 247 & 10,901 \\
6 & Zhongxian & \(\leftarrow\)\(\rightarrow\) & Wanzhou & 247 & 22,870 \\
7 & Wanzhou & \(\leftarrow\)\(\rightarrow\) & Boundary & 247 & 12,596 \\
8 & Chongqing & \(\leftarrow\)\(\rightarrow\) & Nanchuan & 252 & 6820 \\
9 & Nanchuan & \(\leftarrow\)\(\rightarrow\) & Qianjiang & 241 & 7883 \\
10 & Tongnan & \(\leftarrow\)\(\rightarrow\) & Bishan & 246 & 7675 \\
11 & Boundary & \(\leftarrow\)\(\rightarrow\) & Tongnan & 251 & 6745 \\
12 & Tongnan & \(\leftarrow\)\(\rightarrow\) & Bishan & 251 & 6766 \\
13 & Boundary & \(\leftarrow\)\(\rightarrow\) & Fuling & 253 & 1542 \\
14 & Chongqing & \(\leftarrow\)\(\rightarrow\) & Yongchuan & 254 & 529 \\
15 & Yongchuan & \(\leftarrow\)\(\rightarrow\) & Qijiang & 255 & 1426 \\
16 & Hechuan & \(\leftarrow\)\(\rightarrow\) & Changshou & 255 & 5314 \\
17 & Chongqing & \(\leftarrow\)\(\rightarrow\) & Chongqing & 255 & 1385 \\
18 & Chongqing & \(\leftarrow\)\(\rightarrow\) & Chongqing & 255 & 7940 \\
19 & Boundary & \(\leftarrow\)\(\rightarrow\) & Wanzhou & 254 & 6537 \\
20 & Nanchuan & \(\leftarrow\)\(\rightarrow\) & Chongqing & 253 & 1483 \\
21 & Liangping & \(\leftarrow\)\(\rightarrow\) & Fengdu & 251 & 131 \\
22 & Hechuan & \(\leftarrow\)\(\rightarrow\) & Jiangjin & 253 & 7228 \\
23 & Jiangjin & \(\leftarrow\)\(\rightarrow\) & Chongqing & 254 & 8989 \\
24 & Wanzhou & \(\leftarrow\)\(\rightarrow\) & Liangping & 254 & 5413 \\
25 & Zhong County & \(\leftarrow\)\(\rightarrow\) & Qijiang & 253 & 7803 \\
26 & Science Park & \(\leftarrow\)\(\rightarrow\) & Jinfeng & 254 & 4615 \\
27 & University Park & \(\leftarrow\)\(\rightarrow\) & Shijia Courtyard & 255 & 7618 \\
28 & Chongqing West Railway Station & \(\leftarrow\)\(\rightarrow\) & Yongchuan & 252 & 7191 \\
29 & Banan District Huimin & \(\leftarrow\)\(\rightarrow\) & Nanchuan Jinfoshan & 255 & 2174 \\
30 & Bishan Daishan Avenue & \(\leftarrow\)\(\rightarrow\) & Dazu Rock Carvings & 255 & 759 \\
31 & Xuetangwan, Banan District & \(\leftarrow\)\(\rightarrow\) & Qijiang District & 252 & 1654 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: The AUT and _puf_ values after the completion of a single transportation infrastructure project.