# Hierarchical ramp metering in freeways: An aggregated modeling and control approach

> Research article (Transportation Research Part C Emerging Technologies, 2019) · cited 97× · AI/ML

**Wikidata**: [openalex:W2989932935](https://www.wikidata.org/wiki/openalex:W2989932935)  
**Source**: https://4ort.xyz/entity/hierarchical-ramp-metering-in-freeways-an-aggregated-modeling-and-control-approach