In the article titled “Optimization Model of Traffic Sensor Layout considering Traffic Big Data” [1], the authors identified a number of minor errors in the article. The road network data have been refined since the publication of the study, thus obtaining more accurate results. The contents of Tables 2 and 3 should be amended as follows.
An error was identified in the system cost of the detector, and Figure 2 should be revised as follows.
In Section 5.3 (Calculation Procedure), the procedure should be corrected as follows.
Step 1. (minimum system cost optimization): the minimum system cost CC∗ and the maximum system cost CCmax can be obtained by solving (19), the values of which are 1.86 and 33.48 million, respectively.
Step 2. (maximum truncation flow optimization): the maximum truncation flow IF∗ and the maximum value of truncation flow IFmax are both 1400 pcu/h according to (20), on the basis of CC∗, CCmax, and (22).
A minor data error was also identified in Section 5.2.4 (Comparative Analysis) as follows: “For ingle-objective optimization, the range of feasible number of points is [1, 18; ] the system cost varies within [1.68, 30.24] and is optimal when the, number of points is 1; the truncated flow varies in [725,1400] and takes the optimal value when the number of points is greater than 2; the path coverage varies in [4, 48] and takes the optimal value when the number of points is 2 or 3” should be corrected to “For ingle-objective optimization, the range of feasible number of points is [1, 18;] the system cost varies within [1.86, 33.48] and is optimal when the, number of points is 1; the truncated flow varies in [725, 1400] and takes the optimal value when the number of points is greater than 2; the path coverage varies in [4, 48] and takes the optimal value when the number of points is 2 or 3.”