## 4 Results and Discussion
As expected, most of the segments exhibited a lesser density in the FS than in the IS and the summation of the negative values (as an absolute value) from the density average difference is larger than the summation of the positive values. The previous said applies to the DG and the DP. Another important result is the change of standard deviation (STD) of the variables VG, VP, DG, and DP, from IS to FS. We calculate the STD of \(DG_{i}^{FS}\) minus the STD of \(DG_{i}^{IS}\). The segments for which \(\left(STD\ of\ DG_{i}^{FS}-STD\ of\ DG_{i}^{IS}\right)\leq 0\) represent the 82.6087%, for those segments the \(y\)-axis values mean is \(-\)8.4806 \(\times\) 10\({}^{-4}\) veh/m; the segments for which \(\left(STD\ of\ DG_{i}^{FS}-STD\ of\ DG_{i}^{IS}\right)>0\) represent the 17.3913%, for those segments the \(y\)-axis values mean is 1.2161 \(\times\) 10\({}^{-4}\) veh/m. We have that _t_change_ = 0.0498, _p_change_ = 2.9305%, and _n_change_ = 97.0695%. We calculate the STD of \(DP_{i}^{FS}\) minus the STD of \(DP_{i}^{IS}\). The segments for which \(\left(STD\ of\ DP_{i}^{FS}-STD\ of\ DP_{i}^{IS}\right)\leq 0\) represent the 81.1594%, for those segments the \(y\)-axis values mean is \(-\)6.5564 \(\times\) 10\({}^{-4}\) veh/m; the segments for which \(\left(STD\ of\ DP_{i}^{FS}-STD\ of\ DP_{i}^{IS}\right)>0\) represent the 18.8406%, for those segments the \(y\)-axis values mean is 1.7210 \(\times\) 10\({}^{-4}\) veh/m. We have that _t_change_ = 0.0390, _p_change_ = 5.7435%, and _n_change_ = 94.2565%. Then, the \(dg\) (and \(dp\)) between periods is similar in the FS than in the IS for most of the segments, and the negative change from the density standard deviation difference (for DG and DP) represents the majority of the total amount of change (1 negative change! + positive change). SCSs \(i\) = 11, 25, and 69, and SNS \(i\) = 66 present the highest negative change of STD of DG. SCS \(i\) = 22 presents the highest negative change of STD of DP. We calculate the STD of \(VG_{i}^{FS}\) minus the STD of \(VG_{i}^{IS}\). The segments for which \(\left(STD\ of\ VG_{i}^{FS}-STD\ of\ VG_{i}^{IS}\right)\leq 0\) represent the 89.8551%, for those segments the \(y\)-axis values mean is \(-\)0.2133 m/s; the segments for which \(\left(STD\ of\ VG_{i}^{FS}-STD\ of\ VG_{i}^{IS}\right)>0\) represent the 10.1449%, for those segments the \(y\)-axis values mean is 0.0678 m/s. We have that _t_change_ = 13.6994, _p_change_ = 3.4636%, and _n_change_ = 96.5364%. We calculate the STD of \(VP_{i}^{FS}\) minus the STD of \(VP_{i}^{IS}\). The segments for which \(\left(STD\ of\ VP_{i}^{FS}-STD\ of\ VP_{i}^{IS}\right)\leq 0\) represent the 73.913%, for those segments the \(y\)-axis values mean is \(-\)0.1991 m/s. The segments for which \(\left(STD\ of\ VP_{i}^{FS}-STD\ of\ VP_{i}^{IS}\right)>0\) represent the 26.087%, for those segments the \(y\)-axis values mean is 0.0915 m/s. We have that _t_change_ = 11.8023, _p_change_ = 13.9623%, and _n_change_ = 86.0377%. For most of the segments in the FS the \(yg\) is similar along the time periods than in the IS, for those segments the STD of VG is a lower value in the FS than in the IS. The same is true with \(vp\). In addition, the summation (as an absolute value) of the negative change of the STD of VG is noticeably higher than the summation of the positive change. The same is true with VP. SCS \(i\) = 22 (\(\sim\)\(-\)0.65 m/s) gets the lower value of the difference of STD of VG. SCSs \(i\) = 21 (\(\sim\)\(-\)0.6 m/s), \(i\) = 22 (\(\sim\)\(-\)0.71 m/s), \(i\) = 48 (\(\sim\)\(-\)0.64 m/s) and \(i\) = 69 (\(\sim\)\(-\)0.6 m/s) get the lower values of the difference of STD of VP. Table 1 summarizes the results presented above (the units of the columns Positive values AVG and Negative values AVG are in m/s if the vectors compared is a difference involving VG or VP and in veh/m if the vectors compared is a difference involving DG or DP.