[Ord. 862, §2; Ord. 1580, §1]
(a) 
All vehicles, when in operation shall be kept as close to the right-hand side of the street as possible; provided, however, that all vehicles, when in operation on any street upon which traffic is restricted to one direction only, may be driven in either the right-hand or left-hand lane of such street.
(b) 
An operator or driver meeting another vehicle coming from the opposite direction on the same street shall turn to the right of the center of the street so as to pass without interference.
[Ord. 862, §2; Ord. 1580, §1]
An operator or driver of a vehicle overtaking another vehicle going in the same direction and desiring to pass the same shall pass to the left of the vehicle so overtaken; provided that the way ahead is clear of approaching traffic and the vehicle being passed is not crossing an intersection. An operator or driver overtaking and desiring to pass a vehicle shall sound his signal device and the operator or driver of the vehicle so overtaken shall promptly, upon such signal, turn his vehicle as far as reasonably possible to the right in order to allow free passage on the left of his vehicle. Provided, however, that this Section shall not apply to the operation of any vehicle on any street upon which traffic is restricted to one direction only.
[Ord. 2116, § 1]
Where a special lane for making left turns by drivers proceeding in opposite directions has been indicated by official traffic-control devices:
(a) 
A left turn shall not be made from any other lane.
(b) 
A vehicle shall not be driven in the lane except when preparing for or making a left turn from or into the roadway.
[Ord. 862, § 2]
At an intersection of two (2) streets, where vehicles are not required by this Code or other ordinances to stop, an operator of a motor vehicle shall have the right-of-way over an operator or driver of another motor vehicle who is approaching from the left and shall give the right-of-way to an operator or driver of a motor vehicle approaching from the right. The right-of-way shall mean the right to proceed when two (2) or more vehicles will reach such intersection at approximately the same time.
[Ord. 862, §2; Ord. 1792, §1]
All vehicles, when in operation on the public streets, shall be operated so as to remain a reasonably safe and prudent distance behind any other vehicle immediately in front thereof and proceeding in the same direction.
[Ord. 862, §5]
No person shall drive or conduct any vehicle in such condition or so constructed or so loaded as to be likely to cause delay in traffic or accident or injury to man, beast or property.
[Ord. 862, §23; Ord. 1665, §1]
Every person operating a motor vehicle upon the public streets and thoroughfares of the city shall drive the same in a careful and prudent manner, and shall exercise the highest degree of care in such a manner as not to endanger the property of another or the life and limb of any person. Any person failing to operate a motor vehicle in such a manner shall be deemed guilty of careless and imprudent driving.
[Ord. 2191, §1; Ord. 3876, §1]
(a) 
No person shall operate or be in control of a motor vehicle within the City of Rolla without having first been issued a valid operator's or chauffeur's license as provided in Chapter 302, RSMo., and no person shall operate or be in control of a motorcycle within the city without first having been issued a valid operator's or chauffeur's license which shows that he has successfully passed an examination for the operation of a motorcycle as prescribed by Section 302.020, RSMo.
(b) 
In accordance with Section 307.195, RSMo., it shall be unlawful for any person to operate a motorized bicycle, as defined in Sections 301.010 and 307.180, RSMo., on any highway or street in the City of Rolla without having first been issued a valid operator's or chauffeur's license as provided in Chapter 302, RSMo.
[Ord. 2243, §§1 to 4]
(a) 
No person shall authorize or knowingly permit a motorcycle or other two (2) or three (3) wheeled self-propelled vehicle owned by him or under his control to be driven upon a highway by any person whose operator's or chauffeur's license does not indicate that the person has passed the examination for the operation of a motorcycle or has been issued an instruction permit therefore.
(b) 
No person shall operate a motor vehicle with an instruction permit or chauffeur's or operator's license issued to another person.
(c) 
No person shall cause or knowingly permit his child or ward under the age of sixteen (16) years to drive a motor vehicle upon any highway when such minor is not authorized to legally operate a motor vehicle.
(d) 
No person shall authorize or knowingly permit a motor vehicle owned by him or under his control to be driven upon any highway by any person who is not authorized by law to operate a motor vehicle.
[Ord. 1959, §1]
A driver or operator of a vehicle may overtake and pass to the right of another vehicle proceeding in the same direction only under the following conditions:
(a) 
When the vehicle overtaken is making or about to make a left turn.
(b) 
When the street upon which the vehicle is being operated is a street with unobstructed pavement of sufficient width for two (2) or more lines of vehicles in each direction.
(c) 
When the street upon which the vehicle is being operated is a one-way street.
(d) 
The driver of a vehicle may overtake and pass another vehicle upon the right only under the foregoing conditions when such movement may be made in safety.
[Ord. 2567, §§1-4]
(a) 
It shall be unlawful for any person to operate upon the public streets or sidewalks in the City of Rolla, Missouri any non-licensed all terrain vehicle.
(b) 
For the purposes of this Ordinance, the terms "all terrain vehicle" means a motorized vehicle having three (3) or four (4) wheels with tires that are designed for off the road driving.
(c) 
For the purpose of this Ordinance, the term "non-licensed all terrain vehicle" means a vehicle that is not subject to licensing and registration laws of the State of Missouri.
(d) 
The penalty for violation of this Ordinance is a fine not to exceed five hundred dollars ($500.00) or a jail sentence not to exceed three (3) months or both a fine and jail sentence within said limits.
[Ord. 3584, §1]
(a) 
No owner of a motor vehicle registered in this State, or required to be registered in this State, shall operate, register or maintain registration of a motor vehicle, or permit another person to operate such vehicle, unless the owner maintains the financial responsibility which conforms to the requirements of the laws of this State. Furthermore, no person shall operate a motor vehicle owned by another with the knowledge that the owner has not maintained financial responsibility unless such person has financial responsibility which covers the person's operation of the other's vehicle; however, no owner shall be in violation of this subsection if he or she fails to maintain financial responsibility on a motor vehicle which is inoperable or being stored and not in operation.
(b) 
A motor vehicle owner shall maintain the owner's financial responsibility in a manner provided for in Section 303.160, RSMo., or with a motor vehicle liability policy conforming to the requirements of the laws of this State.
[Ord. 2354, §2; Ord. 3488, §2]
A person commits the offense of driving with excessive blood alcohol content if he operates a motor vehicle with eight-hundredths of one percent (0.08%) or more by weight of alcohol in his blood.
[Ord. 2354, §2]
As used in this Ordinance, the terms drive or operate means physically driving or operating or being in the actual physical control of a motor vehicle.
[Ord. 2354, §2]
Any person who operates a motor vehicle shall be deemed to have given consent to a chemical test or tests of his breath, blood, saliva or urine for the purpose of determining the alcohol or drug content of his blood. Such tests shall be performed according to the provisions of state law, in Section 577.020 through 577.041, RSMo.
[Ord. 2354, §2]
Any arrest for driving while intoxicated shall be handled as any other arrest for an offense of the same severity, except as follows:
(a) 
As soon as practicable following such arrest, the police department shall obtain the driving record of the persons arrested.
(b) 
Any person who has a driving record that indicates a prior conviction for driving while intoxicated or driving with excessive blood alcohol content within ten (10) years of the date of the present alleged offense shall be subject to prosecution for said alleged offense in the Circuit Court of Phelps County, Missouri, at the option of the State Prosecuting Attorney. When such a driving record is determined, the City Attorney shall inform the State Prosecuting Attorney of said driving record and the pending offense and the State Prosecuting Attorney, within five (5) days after the receipt of such information, shall inform the City Attorney whether or not the Municipal charge be dismissed and state charges filed. Failure on the part of the State Prosecuting Attorney to make such determination within the aforesaid period, shall be deemed a waiver on behalf of the State of Missouri to prosecute such persons for driving while intoxicated charge in the State Court.
(c) 
No person, regardless of his prior conviction record shall be prosecuted through the Municipal Court where it appears possible that a charge of vehicular manslaughter (Section 577.005, RSMo.) or vehicle injury (Section 577.008, RSMo.) might be sustained, until after the State Prosecuting Attorney shall have had the opportunity to review the case and to consider filing appropriate charges.
[Ord. 2354, §2]
No person charged with driving while intoxicated (Section 27-41) or driving with blood alcohol content (Section 27-42) shall have his case heard in Municipal Court except in accordance with the following procedure:
(a) 
The defendant should either be represented by an attorney, or should voluntarily waive his right to such representation by execution of a written waiver. If the defendant chooses to do neither (or if because he is an indigent is unable to employ an attorney), the prosecution of the case may be suspended and the case referred to the state prosecuting official.
(b) 
Neither the Municipal Judge nor any other municipal official shall have the power to revoke any operator's or chauffeur's license.
[Ord. 2354, §2]
Effective July 1, 1983, a record of the final disposition in any court proceeding involving a violation of Section 27-41 or Section 27-42 shall be forwarded to the Missouri State Highway Patrol within fifteen (15) days by the Clerk of the Court.
[Ord. 2354, §2]
(a) 
Any person convicted of driving while intoxicated shall be fined not less than one hundred dollars ($100.00) nor more than five hundred dollars ($500.00), confinement in the county jail for not more than ninety (90) days, or both such fine and confinement.
(b) 
Any person convicted of driving with blood alcohol content shall be fined not less than one hundred dollars ($100.00) nor more than five hundred dollars ($500.00), confined in the county jail for not more than ninety (90) days, or both such fine and confinement.
(c) 
Upon a plea of guilty or a finding of guilty for an offense of driving while intoxicated or driving with blood alcohol content, the court may (as a condition for suspending any permissible portion of any sentence or in addition to imposition of any penalties provided bylaw) order the convicted person to participate in and successfully complete an alcohol or drug related traffic offender education or rehabilitation program as described in Section 577.049, RSMo. Such a program may be used as a condition for suspending any permissible portion of any sentence only one time.
[Ord. 2861, §1; Ord. 3600, §2]
Upon a plea of guilty or finding of guilty for a violation of Section 27-41 or Section 27-42, the court may, in addition to imposition of any penalties provided by law, order the convicted person to reimburse the state or local law enforcement agency which made the arrest for the costs associated with such arrest.  Such costs shall include the reasonable cost of making the arrest, including the cost of any chemical test made under this chapter to determine the alcohol or drug content of the person's blood, and the costs of processing, charging, booking and holding such person in custody. 
[Ord. 2981, §1]
After a period of not less than ten (10) years, an individual who has pleaded guilty or has been convicted for a first alcohol-related driving offense which is in violation of this Code and which is not a conviction for driving a commercial motor vehicle while under the influence of alcohol and who since such date has not been convicted of any other alcohol-related driving offense may apply to the court in which they pled guilty or was sentenced for an order to expunge from all official records all recordation of their arrest, plea, trial or conviction. If the court determines, after hearing, that such person has not been convicted of any alcohol-related driving offense in the ten (10) years prior to the date of the application for expungement, and has no other alcohol-related enforcement contacts as defined in Section 302.525, RSMo., during that ten-year period, the court shall enter an order of expungement. The effect of such order shall be to restore such person to the status they occupied prior to such arrest, plea or conviction and as if such event had never taken place. No person as to whom such order has been entered shall be held thereafter under any provision of any law to be guilty of perjury or otherwise giving a false statement by reason of their failure to recite or acknowledge such arrest, plea, trial, conviction or expungement in response to any inquiry made of them for any purpose whatsoever and no such inquiry shall be made for information relating to an expungement under this section. A person shall only be entitled to one (1) expungement pursuant to this section. Nothing contained in this section shall prevent the Missouri Director of Revenue from maintaining such records as to ensure that an individual receives only one (1) expungement pursuant to this section for the purpose of informing the proper authorities of the contents of any record maintained pursuant to this section.