Is it legal for neighborhoods to put up their own speed limit signs?

Neighbors want more speed limit signs on Shore Drive

What does it take to change a speed limit in Pa.? | FOX43 Finds Out

Largo plans to change residential speed limit from 30 to 25

Have your say on Proposed Speed Limit Changes - Phase Three

CTS Webinar: Impact of Speed Limit Changes on Urban Streets

Speed limit increased in neighborhood that wanted it dialed back

Speed limit to drop from 30 to 25 mph in Nashville neighborhoods

Eugene to reduce speed limit in residential neighborhoods

Speed limit to be lowered to 25 mph in Nashville’s residential neighborhoods

'55 mph is too much': Neighbors push for speed limit change for Cabell County road after fatal accid

Should neighborhood speed limit be cut from 30 to 25 mph? Some in Fort Worth thinks so

Speed and Safety: Speed Limit Setting and Speed Management

Two MN Highways To Receive Speed Limit Increase

New Bill Would Let Neighbors Petition State for Speed Limit They Want

Know Your SPEED LIMITS | How To Tell Speed Limit Without Signs UK

Some Albuquerque residents concerned after vandals change speed limit sign

Bro’s hacking life 😭🤣

THE BEST EMERGENCY STOP! 😖#brake first then #clutch #stop #reaction #driving #test #howto #pass

City wants to lower speed limit to 20 mph in residential neighborhoods