Strong political will is required to push through BRT plans, often at an initial political cost, but localities generally are very happy about them once they are in operation. These include better bus tracking and dispatching (GPS-based), smart-card fare systems with integration with other travel modes, such as metros and non-BRT buses, and real-time schedule information that allow passengers to see when the next bus will arrive. Synchronisation of traffic lights to reduce bus waiting times at red signals is also in use in some systems. Such technologies have helped BRT to provide highly efficient transport in the places that have applied them fully.