Yuri.Brigadir, 
Communicate road information to citizens
communicate road information to SatNavs and Phones in order to warn about potential hazards on the road ahead
I reckon that the simplest solution is the following : - gather real-time data from roads, such as average speed of vehicles, presence of traffic jams, roadworks or slow moving vehicles such as tractors. - crunch that data and then send the most appropriate information to a driver's satnav device ( it could also be a phone ). This information could be a recommended speed or potential danger ahead.
People usually make mistakes on the road because they go too fast and don't anticipate anything that is ahead.
+[项目]
在写想法时，要写得好像是新发明。 “交流信息”的思想可能是集思广益的一部分，但是在Infinity上，解决方案部分用于具有概念化程度的思想，您可以在其中命名，例如新颖的系统或小工具。因此，可能是“基于GPS数据警告您有障碍物的SatNav”。现在，如果您可以详细了解其工作原理，那么对于Infinity的想法将是一件好事。 :)
顺便说一句，我敢肯定，您知道当前的交通状况正是通过这种方式推断出来的-来自道路上手机所有者的信号。我不确定手机中的更新速度是否足以满足碰撞预警系统的需求，而且可能还需要汽车专用设备。
这与传统雷达相比如何？
When writing ideas, write as if hey are new inventions. The thought "to communicate information" can be a part of brainstorming, but on Infinity, the solutions section is for ideas that have the degree of conceptualization, where you can put a name to it, something like a novel system, or a gadget. So, it could be "A SatNav that warns you of obstacles based on GPS data". Now, if you could go into more details of how it would work, this would be good for an idea on Infinity. :)
Btw., I'm sure you are aware that the current traffic conditions are inferred exactly this way -- by signals from the mobile phone owners on the roads. I'm not sure if the update rate in the phones would be sufficient for a collision warning system though, and likely, you would need special equipment for the cars.
How would this compare to the traditional radars?