I've been searching through the MT state traffic regs for awhile this morning and I'm not finding the info I was hoping to. I assume other states would have similar regs so maybe you guys can help me out.
We all know there are speed limits stating the maximum allowed speeds - in MT 75 mph on divided highways/interstates and 70 on 2-lane highways - but is there such a thing as a minimum speed limit? Driving too fast can be dangerous and hazardous but so can driving too slow... All I can find in the MT regs is this:
61-8-311. Minimum speed regulations. (1) A person may not drive a motor vehicle at a speed slow enough to impede or block the normal and reasonable movement of traffic except when reduced speed is necessary for safe operation or in compliance with law.
(2) On a two-lane highway where passing is unsafe because of oncoming traffic or other conditions, the operator of a slow-moving vehicle behind which four or more vehicles are formed in line shall turn off the roadway at the nearest area where a sufficient and safe turnout exists in order to permit the vehicles following it to proceed. If the shoulder of the highway to the right of the slow-moving vehicle is wide enough and is in a condition allowing safe travel, the operator of the slow-moving vehicle may drive onto the shoulder and proceed at a safe speed until passed. As used in this section, a slow-moving vehicle is one that is proceeding at a rate of speed less than the normal flow of traffic at the particular time and place. The department of transportation is authorized to designate and construct turnouts and to erect official traffic control devices at appropriate places advising motorists of this statute.
(3) If the department of transportation or local authorities within their respective jurisdictions determine on the basis of an engineering and traffic investigation that slow speeds on any part of a highway impede the normal and reasonable movement of traffic, the commission or the local authority may set a minimum speed limit below which a person may not operate a vehicle except when necessary for safe operation or in compliance with law.
The reason I'm hoping to find out more info on this is that I keep coming across these European RV's - I think they call them overland trucks (?) - made by Mercedes. They are all licensed with foreign plates so I'm assuming that there are certain regulations that would apply only to them and they need to meet certain requirements before being allowed on US roadways. These behemoths are becoming more common around here on the roads leading to Yellowstone National Park. The problem is that they can only seem to travel at a maximum of 40 mph (I've gotten caught behind 3 in the last couple of months and each time its a maximum of 40 mph) and the roads to the park are two lane and very curvy so there is not a lot of safe areas to pass other vehicles. Traffic backs up very quickly and people start passing on corners, etc and in general it seems like an accident is imminent.