How are the speed limits for a streets/roads decided?

Answer 1

how are street names decided? these type of questions go on our "things that make us say hmm" list

Answer 2

I saw this one the news the other day. The first get someone out there and use a radar gun to see what is the average speed the traffic is going and then decide whats the safest for the road. Now some cities don't do this and just decide on a speed limit without taking traffic into consideration. That's why some streets/highways we feel like the speed limit is TOO low.

Answer 3

There is a job title, called "traffic engineer." These are the ones that determine what is a safe rate of travel on a particular stretch of road. Things that are considered are: type of surface, expected traffic conditions, nature of the adjoing property and access, width and direction of the road, whether the road is divided, and the nature of the median, etc.

Local, state ordinances may have general speed limits, for certain categories of streets, such a school zones, residential streets, buisness districts, etc. In any case, I can tell you that in almost every state, the posted speed limits indicate the maximum speed UNDER IDEAL CONDITIONS.

That means that in any condition other than clear, sunny daylight hours, such as night, overcast, rain, fog, dust, glare from sunlight, construction, etc, even driving the posted speed limit may garner a driver an unsafe speed citation.

In California, this is called the Basic Speed Law.

Answer 4

By the number of accidents that happen there. But, also there are people who test the road to see at what speed they can safely go and still be able to handle the vehicle. If there are too many accidents there they change the speed limit or post bad curve ahead signs or dip ahead or whatever the need to. .

Answer 5

They throw darts at a list of speeds, whichever speed gets the most darts wins.

Answer 6

based out of at what speeds you could safely stop or swerve causing the less danger to you and your vehicle.
they also study the shape of the road...like when make sharp turns on hills they usually dont let you go more than 25-30mph

Answer 7

Lots of different rules. For example, in some states, urban interstates 55 and rural interstates are 65 or 70.

Answer 8

they line up 4 drunks and race and the first one to crash is averaged with the last one that crashes and the mean is the speed limit for that road.

Answer 9

I would suppose by the amount of traffic to be going through, accessibility of vehicles from different thoroughfares, and amount of pedestrians, if any.

Answer 10

depends on my mind ******