the network can be an ad-hoc network, or a network with masters as part of the road just like the road lamps.
and privacy can be protected by tech.. for example. each cars is identified by  a dynamical ID allocated when it joins the network, instead of a fixed ID assigned by the manufacturer or police.

the key point is that there must be an organization who draft the standard and push the business.

【 在 indps (en) 的大作中提到: 】
: 这个涉及隐私，也没法搞的。
: 技术上不是问题，谁去收集这些信息，以什么方式收集信息才是问题，会吵个没完的。
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FROM 124.42.114.*