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Accuracy Standards and Data Coverage Requirements for Model Validation in FSUTMS.
| 题名： | Accuracy Standards and Data Coverage Requirements for Model Validation in FSUTMS. |
| 作者： | GAN, A.; GU, X.; JUNG, R.; LAN, C. J.; LI, J.; LI, M. T. |
| 关键词： | ACCURACY STANDARDS; DATA COVERAGE; PUBLIC TRANSPORTATION |
| 摘要： | Model validation is an important step in travel demand modeling. It serves to ensure that the calibrated model produces outputs that are consistent with the observed data. In the Florida Standard Urban Transportation Model Structure (FSUTMS), various consistency checks for the validation of the distribution and assignment models are suggested for highway networks. These checks involve the comparison of predicted link volumes with ground counts at screenlines, cordon lines, and/or cutlines. Statistics such as system-wide vehicle-mile-traveled (VMT), vehicle-hour-traveled (VHT), like volume by facility type, are type, facility size (in term of number of lanes), and volume group Root Mean Square Error (RMSE) are major criteria used for validation. Errors between model outputs and what are observed from the actual networks may come from such sources as measurement, sampling, model misspecification errors were considered in deriving accuracy standards for high networks. |
| 报告类型： | 科技报告 |
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