Re:Every map of China is wrong
by gravescale on Friday May 03, 2024 @04:58AM
(#40245587)
> Amap and Baidu already use these data to provide the countdown of traffic light
It's often off by whole second or two. Disaster, I know!
It'll also tell if it can you the ideal speed to drive to hit the next green light and join a "green wave".
I wish TomTom would get in on that.
Re:Every map of China is wrong
by gravescale on Friday May 03, 2024 @11:29AM
(#40248815)
It's funny isn't it, China has a bizarre monopolistic mapping thing enforced legally and technically, and yet it's the Western companies that have basically not produced a new feature for about 10 years, despite slurping down all those petabytes of data in that time (not that Baidu and friends don't slurp data of course, and lots of it).
Maybe people just don't know how important a navigation app is. With enough usage data, you can know the traffic status of any area. Amap and Baidu already use these data to provide the countdown of traffic light. It has 90% accuracy. You can also have a deep understanding of the economic status, or find out some hidden buildings.
So for an algorithm which is already reverse engineered many years ago, it cannot protect anything. It is just a policy to stop foreign companies to join this game.
As for the reason, "national security", "unacceptable risk".