Transportation officials equipped with increasingly sophisticated technology are considering ways they can use traffic signal-prioritization not just to speed the progress of buses, but to solve bus bunching.
These alerts will enable drivers to plan and share alternative travel routes, improve traveler safety and help transportation authorities better predict and reduce bumper-to-bumper traffic before it occurs through improved traffic signal timing, ramp metering and route planning.
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Because tunnels block a radar signal, trains rely largely on hard-wired equipment like the box beside the track, which helps drivers and dispatchers talk to each other and controls a machinelike traffic signal, giving the drivers basic commands to stop and go.
By modulating traffic-signal prioritization, cities may be able to solve bus bunching as well.
Dedicated lanes give buses an uncongested path, and traffic-signal priority gives buses the power, once reserved for emergency vehicles, to switch signals from red to green as they approach.
The most economical and effective congestion solutions involve traditional road building and transit use, combined with traffic management strategies such as signal coordination and rapid crash removal, and demand management strategies like telecommuting and flexible work hours.
The UK and French governments' argument is as follows: the increased security around Calais and the recent dismantling of four people-smuggling gangs will send a strong signal to those who traffic in immigrants.
Torquest folded the technology into a privately held firm called Global Traffic Technologies, which has the lion's share of the signal preemption market.
If local wireless networks proliferate as expected, the traffic will generate so much noise that nobody will be able to get a clear signal, especially in cities that already have thousands of transmitters in offices and homes.
For many who rely on Google's traffic, that disconnect comes as a surprise: In the past, a three-point drop in pagerank would signal a massive loss of pageviews from Google.
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