The best example so far is surely hacked construction signs in the US, with attackers warning of zombies ahead, but it's easy to imagine how taking out traffic networks could shut down a city or otherwise wreak havoc.
Unlike railroads in Europe, ours usually lack links to integrate them seamlessly into the national and global air traffic networks, which will obviously remain the basic transportation system for trips of more than about 300 miles.
"We certainly saw heavier than normal congestions into London this morning on all the main routes into the city," said Mick Savage, head of traffic networks at Trafficmaster, a private company that monitors vehicle flows.
"Through smartphones we're getting more at ease about fine-grained information about space and time," said Frank Kelly, a mathematician at the University of Cambridge in England who specializes in traffic networks.
Urban traffic networks are inherently unstable when congested.
This paper proposes a framework for collectively simulating marine terminal operations and urban traffic networks.
The framework is applied to the signaling split control of traffic networks.
Along with the fast development of the transportation infrastructures, traffic networks become larger and more complex.
The use of traffic control systems can potentially improve the traffic flows on traffic networks.
This paper designs distributed dynamic traffic signal control policies for urban traffic networks.
Although this network is important, other varieties of air traffic networks exist.
