2010-04-14 CC Packet - Laserfiche WebLink

Home Browse Search

August 1, 2007 TRAFFIC ENGINEERING MANUAL 13 -6.00 ENGINEERING AND TRAFFIC INVESTIGATION REQUIREMENTS To ESTABLISH QR' CHANGE REGULATORY SPEED UMrTS 13 -6.01 Authority I Lime S tw (MSY 164.14 sets forth speed limits to emern all hikhwad s and a:) s in dr sltte_ Any poll speed l;in ut greater or kss thm the statutory I:imits must be as rued by the Commissioner of Transportation- Ang• alteration of statutory speed limits on any public road or street shall be based upon the results of an engineering and traffic investigation. It is Mn/DOT policy that the entire Trunk Highway system shall have regulatory speed lim its and 6m sh a lt11 be detemniiwd by ass e , s, and taEaf& iMNeskeallion, The re- gulatory slreed 1(imiit shall be elTec i� a when such son are erected. There are exceptions to the Commissioner's authority to establish regulatory speed limits. I _ schwli zortc• spy limits greatlter thm, 15 - T I but no, more tthm- ZQ? mph beibw the estab,tWh ed liicrrt.ie_ may ht set bu l audwrifics aecordine to, MS 169.14 Subd. 5a. See Chapter 13 in this manual_ 2. Work zone speed limits between 20 and 40 mph and up to 55 mph on divided highways may be set by local authorities according to MS 169.14 Subd. 5d. See Chapter S in this manual. 3. A municipality may establish a speed limit from 10 to 30 mph in a mobile home park according to MS 327.27. 4. Local authorities may establish speed limits not lower than 25 mph on a roadway that has a designated bike lane accordine to MS 160.263. 55_ A p&tka;l sabdiN ision may esta:bbish a speed Eh iit oa a read w. ithi . a mark. The speed Im it shall M be lower than 20 mph and shgif be established in acs idance with guidelines gcescnibed by the commissioner.. The guidelines are the same as those outlined in this section. 6_ A road autl1w,ritcr ma esta;) f sli of 25 naph: zam on a residentW. ma&wavy_ MS 1169.03- sabd_ $I defines; a resiideatial roa ay as a local sftxct Pess d= one4uffnule m leng&.. 13 -6.02 Administrative Procedures The Com m mioner Las dcle=ted authority tto the Assatmt Sita.& Traf& Engine OTT -ITS;_ to, autTno ize tote esCabfishment of speed 1rmits_ The District Traffic: Engineer is w-Voasibte for performing the engineering and traffic investigation necessary for speed limit determination. 1. Trunk Hi gbw ar s A complete investigation report. along with a completed Trunk Highway Speed Limit Authorization Form Mn/DOT 29212. covering the entire Control Section. shall be submitted to the Assistant State Traffic En•gi Leer_ OTC -[TS_ for simiattire. After this review and ap proval: the au*ocizatiion will be returned to: the district for implementation _ 2. Local Streets and Hishways Wl= a focal au my eleerns: an existing screed llinut is not reasonable or safe on a road under its i ansdicnb i,.. &c Local road autheriity may request N4,n/DOT to. make an engineering and traffic invesdgadorr to determine if a change in the speed limit is necessary. The arocedwe is. for due Local road auuth:-orky to, &aw up, a fry reso,l€ Aim reopestiing an investigation. Tht resolution should desc be the road or st w fully and s)'culd indiW° ate the exalct termini oifeach motion where an investigation is desired. Normally the termini should describe a sufficiently long section (at least 1/4 mile or more) to provide for a meaningful study. The resolution should be forwarded to the District Traffic Enginecr ter R idate the i nvestiptior_ 13 -22 35