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The state of state speed limits
With three states raising speed limits this year I decided
to make a map of where America stands: http://www.mit.edu/~jfc/speed/states.gif The map shows the highest speeds posted in the state; in the case of Texas I anticipated the posting of 80 MPH speed limits later this year. The corresponding map for two lane roads is http://www.mit.edu/~jfc/speed/states%202L.gif States with some sort of rumbling about increases in recent years include Idaho (75 two lane), Kansas (75), Kentucky (60 two lane, 70 freeway), Oregon (70), Minnesota (60 two lane and 75 Interstate), and Wisconsin (75 freeway). All of these states have neighbors with higher speed limits. I wanted to make a map for four lane roads but I don't think it would be very informative. In some states rural divided highways are almost entirely freeways; in others they are limited access without interchanges; in others they are not limited access. States where I know there are non-freeway rural four lane roads with the maximum speed limit on such roads between two lane freeway limits are Alabama (65 on four lane roads), Florida (65 on divided highways), Indiana (60 on divided highways without access control), Missouri (65 on divided highways without access control), North Dakota (70 on divided highways), South Dakota (70 on divided highways), Washington (65 on divided highways), and West Virginia (65 on limited access corridor routes). Of the rest, some post expressways like freeways and others post expressways like two lane roads. -- John Carr ) |
> John F. Carr wrote:
> > States with some sort of rumbling about increases in recent > years include Idaho (75 two lane), Kansas (75), Kentucky > (60 two lane, 70 freeway), Oregon (70), Minnesota (60 two > lane and 75 Interstate), and Wisconsin (75 freeway). All > of these states have neighbors with higher speed limits. The "75 Interstate" for Minnesota is news to me, though in both the 75 and the "60 two lane" cases, MnDOT does not necessarily need Legislative approval. Per Chapter 169, Section 14, Subdivision 4 of the Minnesota Statutes, the MnDOT commissioner can designate pretty much any speed limit he/she wants for a given road section so long as it's justified "upon the basis of an engineering and traffic investigation". Although there was some discussion earlier this year about bumping up speed limits on some Twin Cities freeways and rural 2-lane routes, to date MnDOT has yet to increase any speed limits above the previous statuatory maximums. > States where I know there are non-freeway rural four lane roads > with the maximum speed limit on such roads between two lane > freeway limits are Alabama (65 on four lane roads), Florida > (65 on divided highways), Indiana (60 on divided highways > without access control), Missouri (65 on divided highways > without access control), North Dakota (70 on divided highways), > South Dakota (70 on divided highways), Washington (65 on > divided highways), and West Virginia (65 on limited access > corridor routes). Of the rest, some post expressways like > freeways and others post expressways like two lane roads. For Mississippi, 4-lane divided highways have a 65 maximum, with two exceptions. Those two exceptions are full freeway and are posted 70 MPH except within urban areas where they are 60 MPH...just like the Interstates are. The two exceptions are US 78 (which is full freeway in Mississippi), and US 82 east of Starkville. Minnesota also uses a 65 MPH max on rural non-Interstate 4-lane highways...though they theoretically could increase this per the authority mentioned above. Froggie | Virginia Beach, VA | http://www.ajfroggie.com/roads/ |
John F. Carr wrote:
> With three states raising speed limits this year I decided > to make a map of where America stands: > http://www.mit.edu/~jfc/speed/states.gif > > The map shows the highest speeds posted in the state; in > the case of Texas I anticipated the posting of 80 MPH speed > limits later this year. > > The corresponding map for two lane roads is > http://www.mit.edu/~jfc/speed/states%202L.gif > > States with some sort of rumbling about increases in recent > years include Idaho (75 two lane), Kansas (75), Kentucky > (60 two lane, 70 freeway), Oregon (70), Minnesota (60 two > lane and 75 Interstate), and Wisconsin (75 freeway). All > of these states have neighbors with higher speed limits. > > I wanted to make a map for four lane roads but I don't think > it would be very informative. In some states rural divided > highways are almost entirely freeways; in others they are > limited access without interchanges; in others they are not > limited access. > > States where I know there are non-freeway rural four lane roads > with the maximum speed limit on such roads between two lane > freeway limits are Alabama (65 on four lane roads), Florida > (65 on divided highways), Indiana (60 on divided highways > without access control), Missouri (65 on divided highways > without access control), North Dakota (70 on divided highways), > South Dakota (70 on divided highways), Washington (65 on > divided highways), and West Virginia (65 on limited access > corridor routes). Of the rest, some post expressways like > freeways and others post expressways like two lane roads. Your map shows CA as having a max speed limit of 70. It should be 65. The Maximum Speed in CA on freeways is 65, unless otherwise posted. |
GL wrote:
> > Your map shows CA as having a max speed limit of 70. It should be 65. > The Maximum Speed in CA on freeways is 65, unless otherwise posted. According to the California DMV, 70 mph is the maximum CalTrans can sign a freeway. Since John's map notes the top speed that a freeway is able to be signed in a given state, I'd say he's correct: http://www.dmv.ca.gov/pubs/vctop/d11/vc22356.htm Later, Chris -- Chris Bessert http://www.michiganhighways.org http://www.wisconsinhighways.org http://www.ontariohighways.org |
"Chris Bessert" > wrote in message
... > GL wrote: > > > > Your map shows CA as having a max speed limit of 70. It should be 65. > > The Maximum Speed in CA on freeways is 65, unless otherwise posted. > > According to the California DMV, 70 mph is the maximum CalTrans can > sign a freeway. Since John's map notes the top speed that a freeway is > able to be signed in a given state, I'd say he's correct: > > http://www.dmv.ca.gov/pubs/vctop/d11/vc22356.htm > > Later, > Chris > As one data point in support of the fact that CA freeways have a maximum of 70mph, certain parts of the Interstate 15 North are signed as Speed Limit/Maximum Speed 70. |
Daniel W. Rouse Jr. wrote:
> "Chris Bessert" > wrote in message > ... > >>GL wrote: >> >>>Your map shows CA as having a max speed limit of 70. It should be 65. >>>The Maximum Speed in CA on freeways is 65, unless otherwise posted. >> >>According to the California DMV, 70 mph is the maximum CalTrans can >>sign a freeway. Since John's map notes the top speed that a freeway is >>able to be signed in a given state, I'd say he's correct: >> >> http://www.dmv.ca.gov/pubs/vctop/d11/vc22356.htm >> >>Later, >>Chris >> > > As one data point in support of the fact that CA freeways have a maximum of > 70mph, certain parts of the Interstate 15 North are signed as Speed > Limit/Maximum Speed 70. Some rural interstates do have a speed limit of 70 - in addition to I-15 as you mentioned, I-40, I-10 east of Banning, and parts of I-5 in the Central Valley are all signed at 70 mph. -- Robert I. Cruickshank roadgeek, historian, progressive |
Roger that. I guess I missed that part of the post.
Chris Bessert wrote: > GL wrote: > >> >> Your map shows CA as having a max speed limit of 70. It should be 65. >> The Maximum Speed in CA on freeways is 65, unless otherwise posted. > > > According to the California DMV, 70 mph is the maximum CalTrans can > sign a freeway. Since John's map notes the top speed that a freeway is > able to be signed in a given state, I'd say he's correct: > > http://www.dmv.ca.gov/pubs/vctop/d11/vc22356.htm > > Later, > Chris > > -- > Chris Bessert > > http://www.michiganhighways.org > http://www.wisconsinhighways.org > http://www.ontariohighways.org |
John F. Carr wrote: > States where I know there are non-freeway rural four lane roads > with the maximum speed limit on such roads between two lane > freeway limits are Alabama (65 on four lane roads), Florida > (65 on divided highways), Indiana (60 on divided highways > without access control), Missouri (65 on divided highways > without access control), North Dakota (70 on divided highways), > South Dakota (70 on divided highways), Washington (65 on > divided highways), and West Virginia (65 on limited access > corridor routes). Of the rest, some post expressways like > freeways and others post expressways like two lane roads. > -- Missouri has several 4-lane expressways with 70 MPH limits. They are US 63 between Columbia and Jefferson City and US 54 between Kingdom City and Jefferson City. (I think other parts of US 54 may be posted at 70 MPH as well.) John Brocato |
TV's John F. Carr wrote:
> States where I know there are non-freeway rural four lane roads > with the maximum speed limit on such roads between two lane > freeway limits are Alabama (65 on four lane roads), Florida > (65 on divided highways), Indiana (60 on divided highways > without access control), Missouri (65 on divided highways > without access control), North Dakota (70 on divided highways), > South Dakota (70 on divided highways), Washington (65 on > divided highways), and West Virginia (65 on limited access > corridor routes). Of the rest, some post expressways like > freeways and others post expressways like two lane roads. Arkansas has a maximum of 70 on freeways, 65 on 4 lane divided expressways, and 55 on two-lane roads. Has anybody seen a 4-lane undivided highway in AR with a speed limit of 60 or 65? -- Beliefs are dangerous. Beliefs allow the mind to stop functioning. A non-functioning mind is clinically dead. Believe in nothing. - Maynard James Keenan |
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