271 results found displaying 121-123
    
shari
 India
Local Traffic Situation Viewer Printer Friendly Version
GPS-based local traffic situation viewer: Given the GPS satellites and mapping satellites we have today, if we can have satellites dedicated to specific areas, we can have them prepare dynamic maps of the traffic situation: 1. periodically, 2. On demand. I am driving my car fitted with a GPS-local traffic situation viewer (LTSV). I got into a jam, and want to know the situation ahead and behind (can I go on the wrong side ;-), take a turn here, take a right in the next road etc.), I just press the button in my LTSV. That sends my current position, and gets me a traffic picture. If the place is pretty crowded, we can assume that many people will push their buttons and hence the picture needn't be taken multiple times. The device can have controls for zooming in and out, and for traversing up, down, left and right, so I can trace to find the site of obstruction if any. Don't know if such a device already exists.
Reward: One such device to survive the Bangalore traffic 

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28°

    
seewithlove
 USA
Coordinated traffic signals that adapt to traffic flow Printer Friendly Version
There's an accident here on I-5 south and cars flock to side streets to avoid the delays. One lane of the interstate is blocked and miles and miles of backup occurs. But then, the side streets become congested too, then the side side streets etc.
The problem is that the traffic signals on the side streets do not adapt to the radically changed traffic pattern. Sure, some signals are programmed by the hour of the day; others are set not to change until a car arrives on the "side" street. But what about when there's an accident? Sometimes you see a cop out there directing traffic through the lights just to get things going.
I believe that the traffic lights can adapt to the traffic by two simple additions to the local control systems. One implements a car counter to detect traffic (backup and flow rate, etc). The other implements a multi-light synchronization so the entire system can adapt in coordination. It's really a simple concept - maximize the flow of cars through an intersection and compensate for nearby congestion by knowing which intersections will be receiving exiting traffic and which will be providing incoming traffic. (Optimal flow isn't local to one intersection only yet can be reasonably achieved within a small radius of nearby intersections, cooperating with each other.)
The car counter technology could be: radar based units, "photo camera" add-ons, feedback from pressure sensitive pads in the road, those tubes they put down to monitor traffic, or even car based beacons (eventually). If you have a cell phone today in your car, you have a car based beacon already. The interconnection of traffic signals / systems could be implemented easily with secure, short burst digital wireless technology. The control algorithm would be a blast to write.
Basically, in my drive home, when the freeway is clogged and people exit to bypass the accident via side-streets, the intersections that are passed through in the bypass route are adjusted (even slightly) to allow more traffic in the most travelled direction. The system and the traffic would seek equilibrium - a balance in traffic flow throughout the whole network of roads. After the congestion dissipates, the system could return to "best guess" settings derived over long term pattern analysis.
This wouldn't have to be done everywhere - but instead could be applied in areas of high "rush hour" congestion and more-than-typical re-routings.
Reward: I just wanna get home in a reasonably predictable time. 

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58°

    
sebin
 India
Transparent Vehicles Printer Friendly Version
I wish they make all the automobiles, planes, trains all transparent. The production cost will be cheap because the whole body could be moulded from one big plastic rather than going for aluminium or steel.
Just imagine the view from a trasparent airplane it will be great, and the pilots will know what's happening in the passenger car. Some areas should be covered like bathrooms and some other places etc. This is quite a weird idea, many people prefer privacy but this is for those who don't.
Reward: free travel passes 

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48°

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