This document is a guide that details the Vontas OnRoute Supervisor, a mobile web-based application designed for transit supervisors. The application enhances the ability of field personnel to monitor vehicle movements and incidents effectively, thereby improving safety and on-time performance. It replaces traditional paper methods, reducing human error and increasing efficiency through features such as live mapping, incident reporting, and real-time dashboards. The guide outlines the technological requirements for implementation, which includes standard cellular networks and commonly used smartphones or tablets. It discusses user-friendly elements based on standard design principles and addresses potential barriers to implementation, such as concerns about increased surveillance. The application also significantly impacts operational safety by empowering supervisors to make faster decisions and share critical information in real time, ultimately enhancing the passenger experience by minimizing service disruptions.