# Variable speed limit control strategy for freeway tunnels based on a multi-objective deep reinforcement learning framework with safety perception

> Research article (Expert Systems with Applications, 2024) · cited 20× · AI/ML

**Wikidata**: [openalex:W4405752247](https://www.wikidata.org/wiki/openalex:W4405752247)  
**Source**: https://4ort.xyz/entity/variable-speed-limit-control-strategy-for-freeway-tunnels-based-on-a-multi-objective-deep-reinforcement-learning-framewo