- overall link: https://www.caliper.com/tctraveldemand.htm
- add load_zone_census_tracts
- trip generateion (Production and Attraction): 1) corss-classification method 2) Regression Methods 3) Discrete-Choice Methods
- trip distribution: gravity model
- mode choice: multinomial logit model, Nested logit model src: https://github.com/linhx25/MNLogit-zoo/tree/main ; https://github.com/ryonsd/choice-modeling;
- traffic assignment: All-or-nothing; STOCH ; Incremental assignment; Capacity Restraint; User Equilibrium(Frank-Wolf method); Stochastic User Equilibrium (Method of Successive Averages, Sheffi and Powell, 1982; Sheffi, 1985); System optimum Assignment (SO);
- Advanced Traffic Assignment: Alternative or user-defined volume delay function; HOV assignment; Multi-modal multi-class assignment(MMA); Volume-Dependent Turning delays and signal opeimization traffic assignment; Combined trip distribution- assignment model; Create volume delay function DDLs
- Good source: https://github.com/joshchea/python-tdm/tree/master
- Link performance functions t =
$t_f [1 + \alpha(\dfrac{v}{c})^\beta)] $ - Add save node and poi function
- user can update trip rate
- for zone file, change change column id to zone_id
- change file name from zone.csv to zone_grid2demand.csv