## [4.4.0] - 2026-07-10 Travel Demand: trip generation, gravity distribution, and mode split modeling (61 algorithms, 18 groups). ### Added - **Trip Generation** (new Travel Demand group) - calculates zone production and attraction trip rates from population and jobs. - **Gravity Distribution** (Travel Demand group) - computes doubly constrained zone-to-zone flow balancing (Furness/IPF) with exponential or power deterrence over street network costs. - **Mode Split** (Travel Demand group) - splits OD flows into multiple mode shares and flows using a multinomial logit model. - Pure-NumPy `engine/demand.py` with trip generation, Furness gravity balancing, and logit mode split calculations. ### Tested - 384 engine unit checks and 310 real-QGIS e2e assertions on QGIS 3 LTR and QGIS 4. ## [4.3.0] - 2026-07-10 Hazard Screening: flow accumulation, HAND, and flood exposure mapping (58 algorithms, 17 groups).
yes
geo140195philo
2026-07-09T22:36:19.112012+00:00
3.22.0
4.99.0
None
no
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