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This was done to save gas in the 70s.

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Q: Why did the government lower the speed limit to 55 mph?
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The federal government passed legislation lowering the speed limit to 55 mph the purpose of this?

to conserve fossil fuel and to lower the death toll on the roads


What is the speed limit on Interstate 90 in South Dakota?

The speed limit on Interstate 90 in South Dakota is 80 mph or 128.7 km/h, except in city limits where the speed limit is lower, usually 55 or 65 mph.


What is the max speed limit if there is speed limit 45 mph?

45 MPH


When the posted speed limit is 70 mph the minimum speed limit is?

40 mph


The Speed limit was 95 kmh what is the speed in mph?

59 mph


How convention prevail over law?

Example from the USA: Government tried to lower the speed limit from 70 MPH on the freeway to 55 MPH............. And almost everyone ignored that lower limit. Convention held that the drivers would go about 65 MPH and they did, ignoring the law (unless they actually SAW a police vehicle.) Convention prevailed over law in that example of civil disobiedience.


At what speed does a tropical depression form?

There is no lower limit for tropical depression winds, which go up to 38 mph.


When the posted speed limit is 70 MPH the minimum speed limit is MPH.?

In most countries, on most roads, there is no minimum.


When the posted speed limit is 70 mph what is the max speed?

The posted speed limit is the max speed.


When there are no speed limit signs for driving in a residential district the speed limit is?

25 MPH


When the speed limit is not posted the default speed limit recommends that drivers maintain a speed of mph on the highway and mph in the city?

55 on the highway, and 30 in the city.


What is the approximate speed limit in mph?

fast.