Computers have been used for years to monitor road conditions, but advances in sensors and the internet of things are now offering a major leap in monitoring technology. Real-time information optimizes traffic flows. Traffic data collected through sensors coupled with commuter GPS and Bluetooth allow for instantaneous reporting of traffic conditions. Fine-grained traffic flow data created by sensors in infrastructure and vehicles allow intelligent systems to optimize traffic flow by adjusting traffic lights and other signals.
These traffic control systems can also be used to guide emergency services like ambulances smoothly through traffic by finding the fastest route, keeping bridges closed and adjusting traffic lights.