# The SLT equation: A tool to predict and evaluate energy savings in road tunnels with sunlight systems

> Research article (Tunnelling and Underground Space Technology, 2017) · cited 19× · AI/ML

**Wikidata**: [openalex:W2582956409](https://www.wikidata.org/wiki/openalex:W2582956409)  
**Source**: https://4ort.xyz/entity/the-slt-equation-a-tool-to-predict-and-evaluate-energy-savings-in-road-tunnels-with-sunlight-systems