The definition for the offense of "traveling on highways laned for traffic" differs a bit depending upon state laws so to find out what exactly it means in your state you should look up the traffic statute you were cited under. When you know under what statute you were written up under you can check the law, most states have their statutes and laws online, and see how your state defines this traffic violation and see how it will affect your driving record.

For example according to the Pennsylvania Vehicle Code section 3309 is driving on roadways laned for traffic. Here it states that whenever any roadway has been divided into two or more clearly marked lanes for traffic the following rules in addition to all others not inconsistent therewith shall apply:

(1) Driving within single lane. A vehicle shall be driven as nearly as practicable entirely within a single lane and shall not be moved from the lane until the driver has first ascertained that the movement can be made with safety.

(2) Three lane roadways. Upon a roadway which is divided into three lanes and provides for two-way movement of traffic, a vehicle shall not be driven in the center lane except when overtaking and passing another vehicle traveling in the same direction when the center lane is clear of traffic within a safe distance, or in preparation for making a left turn, or where the center lane is allocated exclusively to traffic moving in the same direction that the vehicle is proceeding and the allocation is designated by official traffic-control devices.

(3) Lanes limited to specific use. Official traffic-control devices may be erected to restrict the use of specified lanes to specified classes or types of traffic or vehicles, including multi-occupant vehicles or car pools, and drivers of vehicles shall obey the directions of every such device.

(4) Prohibitions against changing lanes. Official traffic-control devices may be installed prohibiting the changing of lanes on a section of roadway and drivers of vehicles shall obey the directions of every such device.

In Idaho driving on highways laned for traffic is worth one (1) point and is defined in ID Statute 49-637. This statute is pretty much the same as the PA law listed above.

It may be a county or local ordinance that you broke though. If it is not a state law that defines "highways laned for traffic" than a local municipal code may. For instance in the City of Sparks, Nevada Section 10.24.020 of their municipal code is titled streets and highways laned for traffic and states that whenever any street or highway has been divided into clearly marked lanes for traffic, drivers of vehicles shall obey the following provisions:

A. A vehicle shall normally be driven in the lane nearest the right-hand edge or curb of the street or highway when the lane is available for travel except when overtaking another vehicle or in preparation for a left turn as permitted in subsection D of this section.

B. A vehicle shall be driven as nearly as is practicable entirely within a single lane and shall not be moved from a lane until the driver has first ascertained that such movement can be made with safety.

C. Upon a street or highway which is divided into three lanes, a vehicle shall not be driven in the center lane except when overtaking and passing another vehicle or in preparation for a left turn, or unless such center lane is at the time allocated exclusively to traffic moving in the direction the vehicle is proceeding and is sign-posted to give notice of such allocation.

D. The public works director may designate right-hand lanes for slow moving traffic and inside lanes for traffic moving at the speed indicated, and when such lanes are sign-posted or marked to give notice of such designation a vehicle may be driven in any lane allocated to traffic moving in the direction such vehicle is proceeding, but when traveling within such inside lanes vehicles shall be driven at approximately the maximum speed authorized in such lanes, and speed shall not unnecessarily be decreased so as to block, hinder or retard traffic.

And in Arlington County, Virginia their Country Code (Section 14.2-20) has special regulations applicable on streets and highways laned for traffic which basically states that cars should travel in the curb lane except when overtaking and passing another vehicle. Also that one should travel in a single lane until the driver can ascertain that such movement can be made safely. When a highway is marked with double traffic lines then one should not drive to the left of such line.

So it would depend upon state laws regarding this traffic offense and how you described your accident to law enforcement as to why you were ticketed for this offense. It could be that you were driving in the left lane when you were not overtaking a vehicle and were cited for doing so or more likely that because when you lost control your vehicle crossed over the double line dividing the sides of the highway and thus were to the left of the line when you crashed on the opposite side of the roadway.

You could check with a traffic ticket lawyer in your area to see if hitting black ice and losing control is any kind of defense for crossing the middle line and ending up on the opposite side of the roadway. The court listed on your ticket can give you information on the penalty for this traffic violation, likely it is a fine amount.

Since this was a single car accident to make a claim for car's damages you would put it through your Collision coverage.