Skip to main content

Currently Skimming:


Pages 117-136

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 117...
... 117 A P P E N D I X D Experiment A Models Mode Identification MNL Model Utility Parameters Name Value Std Error t test p value asc_auto 7.13 1.80e+308 0 1 asc_bike 7.65 1.80e+308 0 1 asc_bus 7.78 1.80e+308 0 1 asc_train 6.44 1.80e+308 0 1 asc_walk 1.86 1.80e+308 0 1 auto_highaccel 16.1 1.18E+03 0.01 0.99 auto_higheraccel 0.785 0.77 1.02 0.31 auto_highspeed 1.44 2.73E+04 0 1 auto_midspeed 0.997 3.23E+03 0 1 bike_lowspeed 0.671 2.80E+04 0 1 bike_midaccel 19 1.76E+03 0.01 0.99 bike_midspeed 13.3 2.79E+04 0 1 bus_highaccel 31.1 1.70E+03 0.02 0.99 bus_higheraccel 0.468 0.737 0.64 0.52 bus_highspeed 1.51 2.73E+04 0 1 bus_midspeed 0.368 3.23E+03 0 1 train_highaccel 4.46 6.26E+03 0 1 train_higherspeed 3.97 1.06 3.75 0 train_highspeed 20.5 2.79E+04 0 1 walk_lowaccel 0.916 1.3 0.7 0.48 walk_lowspeed 7.47 1.44E+04 0 1
From page 118...
... 118 Trip Purpose MNL Model Utility Coefficients (Excluded Items Equal to Zero) Beta Value Std Error t test p value asc_cra_lu_institutional 1.27 0.0605 20.95 0 asc_cra_nearchurch 1.21 0.0837 14.42 0 asc_ctm_iswalkorwheelchair 2.59 0.0618 41.85 0 asc_ctm_transfervariableatleastonenonauto 0.969 0.131 7.38 0 asc_ctm_transfervariablebothnonauto 3.35 0.121 27.74 0 asc_drp_actdurless10min 1.19 0.0473 25.29 0 asc_drp_dropoffvariable 1.39 0.0745 18.69 0 asc_drp_someonedropped 2.56 0.0805 31.77 0 asc_dth_tripdistgreater10mi 0.0837 0.0222 3.77 0 asc_emo_actdurgreater10min 0.55 0.0389 14.12 0 asc_emo_actdurgreater150min 0.514 0.0775 6.63 0 asc_emo_actdurless120min 0.413 0.057 7.25 0 asc_emo_adultparty12pmto2pm 0.172 0.0339 5.08 0 asc_emo_adultpartyactdur20to40min 0.238 0.0298 7.98 0 asc_emo_complexsubtour 0.377 0.0777 4.85 0 asc_emo_groupeatoutduration 0.69 0.0389 17.75 0 asc_emo_iswalkorwheelchair 0.375 0.0609 6.16 0 asc_emo_simplesubtour 0.954 0.0609 15.66 0 asc_grc_actdurgreater10min 0.61 0.0289 21.15 0 asc_grc_actdurgreater90min 0.571 0.0413 13.82 0 asc_grc_adultparty12pmto2pm 0.113 0.0262 4.32 0 asc_grc_groupgroceryduration 0.179 0.0288 6.21 0 asc_hcr_actdur30to90min 0.105 0.0235 4.48 0 asc_her_actdurgreater45min 0.321 0.0334 9.6 0 asc_lu_parks 1.58 0.0756 20.9 0 asc_orc_nearbigbox 0.76 0.0632 12.02 0 asc_orc_nonmand 0.898 0.141 6.36 0 asc_pbs_complexsubtour 0.213 0.0653 3.26 0 asc_pbs_simplesubtour 0.199 0.0627 3.17 0 asc_pkp_actdurless10min 0.955 0.0455 20.98 0 Utility Functions ID Name Specification 3 auto asc_auto *
From page 119...
... 119 Beta Value Std Error t test p value asc_wrl_ftworkeractdurless120min 0.953 0.0609 15.64 0 asc_wrl_ptworkeractdurless120min 0.642 0.105 6.1 0 child_dis_discretionary_starttime3pmto7pm 1.06 0.0823 12.91 0 child_dis_eating_out_starttime5pmto7pm 0.401 0.0792 5.06 0 child_dis_maintenance_starttime2pmto6pm 0.156 0.0585 2.67 0.01 child_dis_visiting_starttime2pmto7pm 0.478 0.0699 6.84 0 cra_all 1.54 0.0787 19.57 0 ctm_child 2.43 0.0928 26.2 0 ctm_drvchild 1.36 0.163 8.35 0 ctm_ftw 2.57 0.0725 35.4 0 ctm_nonw 1.21 0.0825 14.67 0 ctm_presc 0.825 0.176 4.7 0 ctm_ptw 1.61 0.0947 16.98 0 ctm_retr 0.803 0.112 7.18 0 ctm_ustu 2.39 0.148 16.17 0 dis_discretionary_highincome 0.219 0.0231 9.45 0 dis_discretionary_lu_commercial 0.482 0.0265 18.22 0 dis_discretionary_zerocars 0.572 0.1 5.72 0 dis_eating_out_highincome 0.137 0.0231 5.95 0 dis_eating_out_lu_commercial 1.38 0.0455 30.37 0 dis_eating_out_zerocars 0.377 0.0948 3.97 0 dis_escorting_female 0.176 0.032 5.49 0 dis_escorting_highschoolenrollment 0.442 0.114 3.87 0 dis_escorting_k8enrollment 0.49 0.126 3.89 0 dis_escorting_nondrivingchildren 0.549 0.0363 15.14 0 dis_maintenance_female 0.128 0.0186 6.88 0 dis_maintenance_lu_commercial 0.959 0.0301 31.84 0 dis_maintenance_lu_institutional 0.431 0.0266 16.24 0 dis_shopping_female 0.164 0.0197 8.31 0 dis_shopping_lu_commercial 1.49 0.0443 33.56 0 drp_child 1.21 0.175 6.91 0 drp_drvchild 1.08 0.165 6.56 0 drp_ftw 1.7 0.11 15.4 0 drp_nonw 1.24 0.116 10.62 0 drp_presc 1.21 0.135 8.92 0 asc_pkp_someonepicked 3.12 0.0903 34.59 0 asc_rec_grouprecreationduration 0.54 0.0545 9.91 0 asc_sch_schoolbusmode 2.38 0.185 12.86 0 asc_sch_schoollocationmatch 6.99 0.0895 78.12 0 asc_shp_actdurless60min 0.793 0.0329 24.07 0 asc_soc 3.15 0.0676 46.64 0 asc_soc_groupsocialvisitduration 0.554 0.0488 11.34 0 asc_srv_actdurgreater30min 0.421 0.0368 11.45 0 asc_wrk_worklocationmatch 6.35 0.0709 89.65 0 asc_wrl_complexsubtour 1.46 0.1 14.57 0 asc_pkp_pickupvariable 0.899 0.0818 10.99 0 (continued on next page)
From page 120...
... 120 Beta Value Std Error t test p value emo_ptw 1.55 0.131 11.81 0 emo_retr 1.45 0.131 11.09 0 emo_ustu 1.39 0.17 8.19 0 ftw_dis_discretionary_starttime5pmto7pm 0.812 0.0524 15.48 0 ftw_dis_eating_out_starttime11amto1pm 0.408 0.0473 8.63 0 ftw_dis_eating_out_starttime5pmto7pm 0.532 0.0462 11.49 0 ftw_dis_maintenance_starttime3pmto6pm 0.105 0.034 3.1 0 ftw_dis_shopping_starttime3pmto7pm 0.39 0.0362 10.77 0 ftw_dis_visiting_starttime3pmto8pm 0.487 0.0502 9.69 0 mnt_child 3.62 0.084 43.07 0 mnt_drvchild 3.32 0.0946 35.13 0 mnt_ftw 3.83 0.0705 54.24 0 mnt_nonw 3.34 0.0727 45.99 0 mnt_presc 3.3 0.0934 35.35 0 mnt_ptw 3.57 0.0757 47.19 0 mnt_retr 3.48 0.0752 46.22 0 mnt_ustu 3.37 0.11 30.68 0 nonw_dis_discretionary_startttime8amto11am 0.42 0.0687 6.11 0 nonw_dis_eating_out_starttime11amto1pm 0.452 0.0616 7.34 0 nonw_dis_eating_out_starttime5pmto7pm 0.541 0.0692 7.82 0 nonw_dis_maintenance_startttime8amto2pm 0.412 0.0376 10.97 0 nonw_dis_shopping_startttime9amto3pm 0.205 0.0393 5.21 0 presc_dis_eating_out_starttime11amto1pm 0.758 0.149 5.1 0 presc_dis_eating_out_starttime5pmto7pm 0.958 0.137 6.98 0 presc_dis_maintenance_starttime8amto2pm 0.259 0.0784 3.3 0 ptw_dis_discretionary_starttime5pmto7pm 0.507 0.0879 5.76 0 ptw_dis_eating_out_starttime11amto1pm 0.422 0.0697 6.06 0 ptw_dis_eating_out_starttime5pmto7pm 0.314 0.0765 4.11 0 ptw_dis_shopping_starttime11amto3pm 0.0984 0.0466 2.11 0.03 ptw_dis_visiting_starttime4pmto7pm 0.143 0.0782 1.83 0.07 rec_child 2.76 0.104 26.62 0 rec_drvchild 2.37 0.15 15.77 0 rec_ftw 2.92 0.0822 35.46 0 rec_nonw 2.5 0.0845 29.6 0 rec_presc 2.82 0.0948 29.75 0 rec_ptw 2.67 0.0919 29.03 0 rec_retr 2.51 0.096 26.18 0 drp_ptw 1.39 0.12 11.62 0 drp_retr 1.37 0.117 11.73 0 drp_ustu 1.26 0.167 7.56 0 drvchild_dis_discretionary_starttime3pmto7pm 0.661 0.155 4.27 0 drvchild_dis_eating_out_starttime5pmto7pm 0.24 0.149 1.62 0.11 emo_child 1.65 0.139 11.88 0 emo_drvchild 1.44 0.153 9.4 0 emo_ftw 1.85 0.123 14.95 0 emo_nonw 1.27 0.132 9.57 0 emo_presc 0.91 0.17 5.35 0
From page 121...
... 121 Beta Value Std Error t test p value sch_ptw 0.403 0.177 2.28 0.02 sch_retr 3.02 0.593 5.09 0 sch_ustu 0.38 0.287 1.32 0.19 shp_child 1.04 0.19 5.47 0 shp_drvchild 0.74 0.199 3.72 0 shp_ftw 1.12 0.184 6.11 0 shp_nonw 0.885 0.186 4.76 0 shp_presc 0.961 0.189 5.09 0 shp_ptw 0.985 0.187 5.26 0 shp_retr 1 0.187 5.38 0 shp_ustu 0.905 0.204 4.44 0 ustu_dis_eating_out_starttime5pmto7pm 0.244 0.197 1.24 0.21 wrk_ftw 1.56 0.0808 19.36 0 wrk_ptw 1.05 0.104 10.1 0 wrl_ftw 4.02 0.0794 50.65 0 wrl_ptw 3.19 0.108 29.47 0 Nesting Coefficients Beta Value Std Error t test p value agg_non_work 1.88 0.0525 35.85 0.00 dis_escorting 1.18 0.0467 25.24 0.00 dis_work 1.00 1.8e+308 0.00 1.00 rec_ustu 2.4 0.159 15.08 0 retr_dis_discretionary_starttime8amto12pm 0.274 0.0858 3.19 0 retr_dis_eating_out_starttime11amto1pm 0.413 0.0654 6.32 0 retr_dis_eating_out_starttime5pmto7pm 0.478 0.0826 5.78 0 retr_dis_maintenance_starttime8amto2pm 0.348 0.0447 7.77 0 retr_dis_shopping_starttime9amto3pm 0.217 0.0475 4.57 0 sch_ftw 1.16 0.189 6.14 0 sch_nonw 1.38 0.188 7.33 0
From page 122...
... 122 Utility Equations ID Name Specification 4 change_travel_mode_transfer asc_ctm_iswalkorwheelchair * iswalkorwheelchair + asc_ctm_transfervariablebothnonauto *
From page 123...
... 123 ID Name Specification + wrk_retr * finalretiree + wrk_drvchild *
From page 124...
... 124 ID Name Specification iswalkorwheelchair + asc_emo_adultparty12pmto2pm * adultparty12pmto2pm + asc_emo_adultpartyactdur20to40min *
From page 125...
... 125 Trip Purpose Decision Tree J48 pruned tree -- -- -- -- -- -- -- -- -- schoollocationmatch = 0 | worklocationmatch = 0 | | dropoffvariable = 0 | | | someonepicked = 0 | | | | nonauto = 0 | | | | | someonedropped = 0 | | | | | | actdurgreater150min = 0 | | | | | | | lu_commercial = 0 | | | | | | | | lu_parks = 0 | | | | | | | | | actdurless30min = 0 | | | | | | | | | | arrhour <= 16 | | | | | | | | | | | finalftworker = 0 | | | | | | | | | | | | lu_institutional = 0 | | | | | | | | | | | | | finalptworker = 0 | | | | | | | | | | | | | | actdurgreater30min = 0 | | | | | | | | | | | | | | | arrhour <= 12: 7 (34.0/22.0) | | | | | | | | | | | | | | | arrhour > 12: 15 (43.0/27.0)
From page 126...
... 126 | | | | | | | | | | | | | | | hhmem > 0 | | | | | | | | | | | | | | | | starttime11amto3pm = 0: 23 (34.0/23.0) | | | | | | | | | | | | | | | | starttime11amto3pm = 1: 21 (26.0/16.0)
From page 127...
... 127 | | | | | | | | | | | | | | | lu_institutional = 0 | | | | | | | | | | | | | | | | actdur <= 6: 7 (240.0/106.0) | | | | | | | | | | | | | | | | actdur > 6 | | | | | | | | | | | | | | | | | age <= 29: 7 (45.0/33.0)
From page 128...
... 128 | | | | | | | | | | | | starttime1amto6pm = 1 | | | | | | | | | | | | | finalretiree = 0 | | | | | | | | | | | | | | starttime4pmto7pm = 0: 7 (1047.0/486.0) | | | | | | | | | | | | | | starttime4pmto7pm = 1 | | | | | | | | | | | | | | | actdurless10min = 0: 15 (120.0/52.0)
From page 129...
... 129 | | | | | | | | | | | | | | | | | | | | | starttime11amto3pm = 0: 7 (117.0/64.0) | | | | | | | | | | | | | | | | | | | | | starttime11amto3pm = 1: 15 (26.0/10.0)
From page 130...
... 130 | | | | | | | | | | | | | | | | | | adultpart y = 0 | | | | | | | | | | | | | | | | | | | tottr <= 2: 23 (118.0/59.0) | | | | | | | | | | | | | | | | | | | tottr > 2 | | | | | | | | | | | | | | | | | | | | actdur <= 66 | | | | | | | | | | | | | | | | | | | | | tripdistance <= 3.75533: 21 (32.0/8.0)
From page 131...
... 131 | | | | | | | | | | | | | | | | | | | | | | | actdur <= 15 | | | | | | | | | | | | | | | | | | | | | | | | starttim e3pmto5pm = 0 | | | | | | | | | | | | | | | | | | | | | | | | | starttime8amto2pm = 0 | | | | | | | | | | | | | | | | | | | | | | | | | | tottr <= 1: 15 (53.0/22.0) | | | | | | | | | | | | | | | | | | | | | | | | | | tottr > 1: 7 (43.0/20.0)
From page 132...
... 132 | | | | | | | | | | | | | | | | | | | | | age <= 47: 15 (36.0/24.0)
From page 133...
... 133 | | | | | | | | | | | | | | | | age > 60: 25 (38.0/28.0) | | | | | | | | | | | | | | | actdur > 412 | | | | | | | | | | | | | | | | arrhour <= 8: 13 (27.0/12.0)
From page 134...
... 134 | | | | | | | arrhour <= 14 | | | | | | | | lu_commercial = 0 | | | | | | | | | finalftworker = 0 | | | | | | | | | | starttime11amto3pm = 0: 5 (49.0/34.0) | | | | | | | | | | starttime11amto3pm = 1: 25 (47.0/25.0)
From page 135...
... 135 | | | | actdurless60min = 0 | | | | | arrhour <= 9 | | | | | | hhmem <= 0: 13 (69.0/45.0) | | | | | | hhmem > 0: 5 (36.0/27.0)
From page 136...
... 136 Number of Leaves: 389 Size of the tree: 765 Time taken to build model: 18.81 seconds Time taken to test model on training data: 1.26 seconds === Error on training data === Correctly Classified Instances 36860 70.5387 % Incorrectly Classified Instances 15395 29.4613 % Kappa statistic 0.6681 Mean absolute error 0.0689 Root mean squared error 0.1856 Relative absolute error 46.3931 % Root relative squared error 68.1127 % Total Number of Instances 52255

Key Terms



This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More information on Chapter Skim is available.