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Japan No Longer Gung-Ho on Vehicle-to-Infra Alone
9/9/2013

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Merging information (Source: Toyota)
Merging information (Source: Toyota)

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junko.yoshida
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Re: Global standard
junko.yoshida   9/12/2013 6:02:19 PM
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I think a debate on how to integrate the recent proliferatinon of smartphones and growing LTE networks into a part of the V2X infrastructure is urgently needed.

rick merritt
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Global standard
rick merritt   9/10/2013 1:33:16 AM
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Seems like we need to learn the lessons of cellular here and find a way to get to global standards for econonies of scale

junko.yoshida
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Big shift
junko.yoshida   9/9/2013 10:19:28 PM
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To me, the most surprising in talking to sources in Japan was what appears to be a big shift in the local industry's thinking. Details of their new ITS roadmap are expected to be discussed next month at ITS world Congress.

junko.yoshida
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Re: Who gets there first?
junko.yoshida   9/9/2013 10:13:21 PM
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That you need both -- V2V and V2I -- is the most logical answer. And yet, the reality is not exactly catching up with that logic.

Bert22306
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Re: Who gets there first?
Bert22306   9/9/2013 8:50:39 PM
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Seems to me that to support true self-driving cars, you will need both types of comms. So if budgetary constraints slow the introduction of vehicle to infrastructure, they'll also be slowing down the introduction of self driving cars.

As to natural disasters, they do tend to damage fixed infrastructure in a way that is more difficult to recover from. But I wouldn't conclude from this that therefore vehicle infrastructure communications aren't very important. For a self driving car, they're still indispensable.

I suppose you can concoct some weird and chaotic schemes, like all moving cars creating this gigantic ad-hoc network, where data from each car's local radar sensors become aggregated into a huge database of road conditions. Or the other way around, where the local infrastructure always intrudes into V2V comms, so there's never a need for that direct link. Aside from the greater complexity, it's not hard to show how either approach has its limits, if you expect self driving to become reality.

junko.yoshida
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Who gets there first?
junko.yoshida   9/9/2013 7:32:44 PM
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In a race to realize the future of self-driving cars, the U.S., Japan and Europe are all looking at different scenarios -- as to when and how V2V and V2I will be implemented in which order.

My recent trip to Japan reveals that Japan, a nation always known for its eagerness to build the infrastructure first, is waking up to the emerging significance of "big data" collected via V2V. 

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