Los Angeles raises speed limits in order to punish speeders
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The Los Angeles Police Department has several tools to monitor car speeds. Police can pace a car to determine its speed, but that can be dangerous, so they prefer to use radar or laser.
But under a California law, using such equipment is only allowed on streets that have been surveyed by the city within the last 10 years. In 2016, about 80 percent of L.A. streets had not been checked in that time period, meaning police have been unable to issue speed tickets on many city roads.
The law was originally intended to protect drivers from arbitrary "speed traps," usually in rural areas where jurisdictions sometimes set arbitrarily low speed limits to ticket drivers and raise revenue.
"(It's) a necessary evil in order to enforce speed laws in the city of Los Angeles," City Councilman Mike Bonin told LAist Wednesday, calling the state law "the stupidest, most ludicrous, most problematic law" he's ever dealt with.
Bonin, who chairs the council's transportation committee, said nearly everyone on the council has expressed frustration over the law, explaining "a cruel catch-22" that uses a formula based on how fast people are driving to calculate speed limits. In effect, that allows lead-footed drivers to influence legal speeds.
"If people are speeding, you have to raise the speed limit," Bonin said. "It's absolutely nuts."
Counterpoint: no, you're wrong, that law is awesome.
I read a really interesting article awhile back about the influence of speed limits on drivers - I don't think this is that same article, but it makes the same point:
Is Every Speed Limit Too Low?
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In each case, the “survey team” has a clear approach: they want to set the speed limit so that 15% of drivers exceed it and 85% of drivers drive at or below the speed limit.
This “nationally recognized method” of setting the speed limit as the 85th percentile speed is essentially traffic engineering 101. It’s also a bit perplexing to those unfamiliar with the concept. Shouldn’t everyone drive at or below the speed limit? And if a driver’s speed is dictated by the speed limit, how can you decide whether or not to change that limit based on the speed of traffic?
The answer lies in realizing that the speed limit really is just a number on a sign, and it has very little influence on how fast people drive. “Over the years, I’ve done many follow up studies after we raise or lower a speed limit,” Megge tells us. “Almost every time, the 85th percentile speed doesn’t change, or if it does, it’s by about 2 or 3 mph.”
As most honest drivers would probably concede, this means that if the speed limit on a highway decreases from 65 mph to 55 mph, most drivers will not drive 10 mph slower. But for the majority of drivers, the opposite is also true. If a survey team increases the speed limit by 10 mph, the speed of traffic will not shoot up 10 mph. It will stay around the same. Years of observing traffic has shown engineers that as long as a cop car is not in sight, most people simply drive at whatever speed they like.
This makes me think of driving from the Golden Gate Bridge into San Francisco in the last several years after they built a new road there. When they first opened it, the speed limit was 35 mph, but it's basically a nice, open freeway:
I don't consider myself a speed demon or reckless or anything but it feels legitimately stupid to drive under 60 on that road, regardless of what the posted limit is. They've since upped it to 45 which is still absurdly low, possibly to the level of being unsafe.