Closed DavidOry closed 1 month ago
DavidOry
commented
9 months ago Location 1: I-880 Northbound near Laney College
Model Link ID: 3046109
Caltrans Station: ALA 880 31.09
Caltrans Daily Count: 12,305 large trucks TM1.5 Daily Estimate: 764 heavy trucks (9,287 small and medium trucks) TM2.2.2 version 0.1 Daily Estimate: 1,655 (52,468 small and medium trucks)
DavidOry
commented
9 months ago Location 2: I-580 WB at I-680 Interchange
Model Link ID: 3001073
Caltrans Station: ALA 580 20.73
Caltrans Daily Count: 8,165 large trucks TM1.5 Daily Estimate: 228 heavy trucks (6,099 small and medium trucks) TM2.2.2 version 0.1 Daily Estimate: 255 heavy trucks (18,483 small and medium trucks)
DavidOry
commented
9 months ago Location 3: US 101 South of San Jose after CA 85 Interchange
Model Link ID: 2265161
Caltrans Station: SCL 101 28.61
Caltrans Daily Count: 6,813 large trucks TM1.5 Daily Estimate: 369 heavy trucks (3,042 small and medium trucks) TM2.2.2 version 0.1 Daily Estimate: 971 heavy trucks (13,016 small and medium trucks)
DavidOry
commented
9 months ago | source | daily_vmt_pc | daily_vmt_sm | daily_vmt_hv | daily_vmt | pc_share | sm_share | hv_share |
|---|---|---|---|---|---|---|---|
| TM1.5.2 | 139,573,000 | 13,964,000 | 956,000 | 154,493,000 | 90.3% | 9.03% | 0.62% |
| TM2.1 | 148,388,000 | 27,862,000 | 700,000 | 176,950,000 | 83.9% | 15.7% | 0.40% |
| TM2.2.2.0.1 | 158,859,000 | 23,731,000 | 605,000 | 183,195,000 | 86.7% | 13.0% | 0.33% |
pc is passenger car, sm is small and medium trucks, and hv is heavy trucks.
FYI @gregerhardt, @lmz: confirming that the TM2.1 and TM2.2.2 commercial vehicle quantities are similar and rather different than the TM1.5 quantities.
As part of the Acceptance Criteria, large truck counts from Caltrans are being compared to the simulation outcomes. In the current working version, labeled version 0.1, the simulated truck volumes are very different from the observed. We therefore want to do some spot checks to confirm that the
tm2pyimplementation, which is in Emme, is giving similar estimates to the TM1.5 implementation, which is in Cube.Progress:
Considerations
Spot check a handful of locations, focusing on those with large observed volumes from the Caltrans database. The TM1.5 are networks are from this run, labeled
2015_TM152_IPA_17.Spot checks will be documented here. FYI @gregerhardt, @lmz, @FlaviaTsang