The document discusses the scope of work for installing communications systems along the main line trackside (guideways) of the LRT3 railway project. It involves installing fiber optic cables, wayside WiFi, main and secondary cable containment systems, private automatic branch exchanges, and other networking components between stations and infrastructure buildings. Diagrams show the proposed layouts of cable routes and equipment at various station areas along the western section of the track in the cities of Shah Alam and Klang. The work is divided into multiple packages based on the geographical sections.