# A constrained filtering algorithm for freeway traffic state estimation

> Research article (Transportmetrica A Transport Science, 2018) · cited 20× · AI/ML

**Wikidata**: [openalex:W2901480098](https://www.wikidata.org/wiki/openalex:W2901480098)  
**Source**: https://4ort.xyz/entity/a-constrained-filtering-algorithm-for-freeway-traffic-state-estimation