# Optimization for operation scheme of express and local trains in suburban rail transit lines based on station classification and bi-level programming

> Research article (Journal of Rail Transport Planning & Management, 2021) · cited 24× · AI/ML

**Wikidata**: [openalex:W4200008229](https://www.wikidata.org/wiki/openalex:W4200008229)  
**Source**: https://4ort.xyz/entity/optimization-for-operation-scheme-of-express-and-local-trains-in-suburban-rail-transit-lines-based-on-station-classifica