this post was submitted on 17 Mar 2025
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GPS (and cellular) doesn't work in tunnels, and it takes a number of seconds for it to reconnect and get GPS coordinates again once you come out of the tunnel.
This is true for all GPS apps and services.
That is true, but it did regain my GPS coordinates and continued to track my location, but the navigation instructions telling me where to turn etc. disappeared and never came back. Luckily I wasn't alone in the car so they just took over navigation for me
And it still might take a minute or two for your cellular to reconnect to gather further directions.
Some apps just might be better about the cellular reconnect side than others, I haven't tried them all.
Even then, it can take over a minute to reconnect to some cellular networks after a tunnel blackout, which may exceed the timeout of some mapping app data requests.
There isn't really a reason for the app not to fake your journey through the tunnel. It knows you're about to enter a tunnel, and it knows you will probably lose GPS signal. It should just show you driving through that tunnel until an estimated time you should exit, then if you don't reconnect in time it should pause at that spot until you catch up.
I hear ya, but it would have to be done with at least some form of red safety indicator, like..
"NO CONNECTION, LOCATION ESTIMATED"
On a side note, why don't Teslas obey the law that says not to stop in tunnels?
https://youtube.com/watch?v=E531GxfEoB8
If I'm honest I'm actually wondering why none if those drivers were paying attention. Cars blow tyres or otherwise stop, it's not limited to misbehaving teslas. The tesla wasn't braking hard and suddenly, it just slowed down.
In my mind the drivers should have been paying more attention.
Sorry, I know we like to hate on teslas here. I still wouldn't buy one (or be a passenger).
Indeed you're right, the following drivers should have been paying more attention. Regardless, shit happens, whether it's a wet noodle or a dry chip controlling the vehicle.
How about a sideline test, send a half dozen electric vehicles through a tunnel, all on autopilot, and have the lead vehicle blow a tire. What would all the following vehicles on auto drive end up doing?
This is actually a perfect use case for a car controlling itself. Automatically applying emergency brakes is something cars (not just self driving cars) have been doing for a while now (in higher end cars).
The thing that puts me off a Tesla (other than the owned by a nazi who bought his way into government thing) is that the fatality rate is double the average, and the weird doors that unless you have been explicitly shown the emergency handle, you're trapped inside after an accident because the normal door opening latch loses power as part of requirements to not electrocute emergency personnel.
The Cybertruck is scarier, because the emergency personnel will struggle to break a window to get you out or use the jaws of life to cut you out on account of the armoured doors and bullet proof windows.
Sometimes, brakes are not the way.
Sometimes, steer the wheel hard left or right real quick to avoid a side impact.
I guess AI hasn't ever lived a day in the real world...
The benefit to cars auto braking is that cars can start braking a second before a person, with a much quicker reaction period. Plus we saw in your video how many people driving are paying attention 😅.
But this is not an argument for self driving, cars can and do have this function with the driver also paying attention for the best of both worlds.
I've been in a situation before where braking would have been the worst idea.
Like a split second later and I would have slammed into the side of the dude that backed out in front of me.
But I realized that very quickly and decided not to hit the brakes at all. I just quickly jerked my steering wheel to the left, which minimized the damages to the corners of our bumpers.
Ask AI to do that kind of maneuver on the fly and it'll totally fuck up, because AI doesn't actually know how to drive..