利用大数据对微观模拟ABM进行校准

1 | WWW.BENTLEY.COM | © 2023 Bentley Systems, Incorporated © 2023 Bentley Systems, IncorporatedUtilizing big data for calibration of a microsimulation ABMGaurav Vyas, Peter Vovsha, Joe Carr - Bentley SystemsPresented at the TRB Innovations in Travel Analysis and Planning Conference, June 4-6, 20232 | WWW.BENTLEY.COM | © 2023 Bentley Systems, Incorporated Common Data Sources in Model Development•Household travel survey (HHTS) data–Main source of disaggregate estimation–But large-scale HHTS is expensive and difficult to recruit–Even 3,000 – 5,000 households are becoming increasingly problematic•Other data sources include–Traffic counts–Transit ridership (APC, e-ticketing / smartcard, on-board survey)–Primarily only used for model validation and manual calibration3 | WWW.BENTLEY.COM | © 2023 Bentley Systems, Incorporated Pros•Becoming increasingly available from vendors•“Big data” trip tables can be used to support aggregate 4-step models in practiceCons•Not