# Estimation of Denied Boarding in Urban Rail Systems: Alternative Formulations and Comparative Analysis

> Research article (Transportation Research Record Journal of the Transportation Research Board, 2019) · cited 31× · AI/ML

**Wikidata**: [openalex:W2951494899](https://www.wikidata.org/wiki/openalex:W2951494899)  
**Source**: https://4ort.xyz/entity/estimation-of-denied-boarding-in-urban-rail-systems-alternative-formulations-and-comparative-analysis