[Imports-us] fleet manager maxspeed reports

[Russ Nelson]

Richard Weait writes:
 > A reminder to please have a look at the sample maxspeed reports on the
 > MapRoulette dev server.

I looked at it. It's kinda strange. First, I'd really like to limit it
to New York State, which would mean four bounding boxes unless it
actually knew about NYS boundaries. Second, I see that it suggests a
65 MPH speed limit on an Interstate. My reaction is "Well duh, why
isn't this automated?"

Are these point reports? Yet we're getting told about a way. I am not
sure we know enough to fruitfully change maxspeed on a way because we
don't know where along the way the speed limit changed.

Right now, it looks like most Interstates don't have a maxspeed by
default. Aren't we going to get an error report for every Interstate,
given that the default speed limit is 65. I did a quick check in NY,
and most of the highways which I know are 65 are marked as 65
already.

But as you say, we're unlikely to get lower speed error reports. So if
somebody has marked the whole Interstate as 65, then if there's a
lower speed close to cities (e.g. I-87 goes down to 55 when you get
close to Albany), we'll never hear about it.

I'm thinking that GPS logs showing us speed would be far more
useful. They would show us speed changes in both directions, up and
down. They would show us (with enough data) exactly where the speed
limit changes.

If there are privacy concerns, maybe stripping out all data for speeds
lower than 30mph would preserve most privacy without impacting speed
limit discovery.

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