In the United States and Canada, several highways have a special lane (called “HOV Lane” – High Occupancy Vehicle Lane) that can only be used by cars carrying two people (some places three) or more. In addition, many major cities have imposed strict parking bans on major arteries leading to the central business district during rush hour. During defined weekdays, vehicles parked on these main roads will be subject to an immediate ticket and towing at the owner`s expense. The purpose of these restrictions is to provide an additional lane to maximize available traffic capacity. In addition, several cities offer a public telephone service, where citizens can arrange walks with other people depending on where they live and work. The aim of these measures is to reduce the number of vehicles on the roads and thus reduce the intensity of commuter traffic. The word traffic originally meant “commerce” (as it always does) and comes from the old Italian verb trafficare and noun traffico. The origin of Italian words is unclear. Suggestions include Catalan trafegar “decant”,[2] a vulgar Latin verb adopted transfricare “to rub the cross,”[3] a supposed vulgar Latin combination of trans- and facere “to do or to do”,[3][4] the Arabic tafriq “distribution”,[3] and Arabic taraffaqa, which can mean “pursuit of profit.” [4] In general, the term covers many types of transport, including network, air, sea and rail transport, but is often used narrowly to refer only to road transport. Some cities are adopting policies to reduce commuter traffic and pollution and encourage the use of public transit. For example, every vehicle in São Paulo, Manila[14] and Mexico City has a specific day of the week when it is forbidden to drive on the roads during rush hour. The label of each vehicle is subtracted from the license plate, and this rule is enforced by the traffic police and also by hundreds of strategically positioned traffic cameras supported by computerized image recognition systems that issue tickets to offending drivers.

An intelligent transportation system (ITS) is a hardware, software and operator system in the loop that allows better monitoring and control of traffic to optimize traffic flow. As the number of kilometres travelled per year continues to increase considerably and the number of kilometres travelled per year has not kept pace, this has led to ever-increasing traffic congestion. As a cost-effective solution to optimize traffic, ITS presents a range of technologies to reduce congestion by monitoring traffic flow through the use of live sensors and cameras or by analyzing data from mobile phones traveling in cars (floating vehicle data) and redirecting traffic as needed through the use of variable message signs (VMS), Roadside warning radio, on-board and off-board navigation devices and other systems by integrating traffic data with navigation systems. In addition, the road network is increasingly equipped with additional communication and control infrastructure that allows traffic personnel to monitor weather conditions, send maintenance crews to clear snow or ice, and intelligent systems such as automated bridge de-icing systems that help prevent accidents. The filming rules are by no means universal. For example, in New Zealand (a left-hand drive country) between 1977 and 2012, left-turn traffic had to give way to opposite-turn traffic that wanted to take the same route (unless there were multiple lanes, but care must be taken in case a vehicle jumped the lane). New Zealand abolished this special rule on March 25, 2012, except at roundabouts or when they are marked with a right-of-way or stop sign. [7] Although the rule initially caused confusion for the driver and many intersections required or are still necessary,[8] the amendment is expected to prevent one fatality and 13 serious injuries per year. In the United States, South Africa and Canada, there are four-lane intersections with a stop sign at each entrance, called four-lane stops. A failed signal or flashing red light is equivalent to a four-lane stop or a stop in all directions. Special rules for four-lane stops can be: In California, cars are allowed to use any lane on multi-lane roads. Drivers moving slower than the general flow of traffic must stay in the right lane (according to California Vehicle Code (CVC) 21654) to clear the way for faster vehicles to speed up traffic.

However, faster drivers can legally overtake on slower lanes if conditions allow (according to CVC 21754). However, the CVC also requires trucks to remain in the right lane or in both right lanes if the lane has four or more lanes in their direction. California`s oldest highways and some interchanges often have ramps on the left, so signs such as “TRUCKS OK ON LEFT LANE” or “TRUCKS MAY USE ALL LANES” are required to bypass the standard rule. Lane sharing or riding motorcycles in the space between cars in traffic is permitted, provided it is done in a safe and prudent manner. [13] In many countries, traffic rules are codified and set out legal requirements and penalties for violations.