VERIFYING THE ACCURACY OF REGIONAL MODELS USED IN TRANSPORTATION AND AIR QUALITY PLANNING

Abstract

This historical forecasting case study of the Sacramento, California region uses the original version of the Sacramento regional travel demand model (SACMET94 estimated with 1991 data) with Year 2000 observed data for validating the model over a nine-year period. In order to test the accuracy of the model, the effect of errors in socioeconomic/land use projections, and induced travel, three simulations are conducted. In the first simulation test, the predictive accuracy of the model is tested. In the second simulation errors in the socioeconomic/land use projections made in 1991 for the year 2000 affect model travel forecasts are tested. In the third simulation tests, it is shown how well induced travel is represented in the model. An estimate of actual induced travel is also provided in this test.

Cite this work

No public copy is stored for this record, so only the metadata is cited.

Stored only when both papers are in the corpus — 15 citations exist upstream.

Papers that cite the same references — the relational fallback while embeddings are still backfilling.