A road train or land train is a trucking vehicle of a type used in rural and remote areas of Australia, the United States and in Europe to move freight efficiently. It consists of two or more trailers or semi-trailers hauled by a prime mover.
The axle load of a wheeled vehicle is the total weight felt by the roadway for all wheels connected to a given axle. Viewed another way, it is the fraction of total vehicle weight resting on a given axle. Axle load is an important design consideration in the engineering of roadways and railways, as both are designed to tolerate a maximum weight-per-axle ; exceeding the maximum rated axle load will cause damage to the roadway or rail tracks.
Road speed limits in Ireland apply on all public roads in the state. These are signposted and legislated for in kilometres per hour. Speed limits are demarcated by regulatory road signs. These consist of white circular signs with a red outline. Speed limits are marked in black with "km/h" below the speed limit. Smaller "repeater" speed limit signs are used along stretches of road where there is no change in speed limit, in order to remind motorists currently on the road and to inform traffic merging from junctions that a certain speed limit applies.
Speed limits in Australia range from 5 kilometres per hour (3.1 mph) shared zones to 130 kilometres per hour (81 mph). In the Northern Territory four highways have 130 kilometres per hour (81 mph) zones. Speed limit signage is in km/h since metrication on 1 July 1974. All speed limits are multiples of 10 km/h – the last digit in all speed signs is zero.
Had Laju Kebangsaan is a set of speed limits applicable on Malaysian expressways, federal roads, state roads and municipal roads. The National Speed Limits was enforced on 1 February 1989 following the National Speed Limit Orders 1989 (Perintah Had Laju Kebangsaan 1989). Like any other countries in the world, failing to obey the speed limit on Malaysian roads and expressways is an offence as subject to Malaysian Road Safety Act 1987, which can be fined up to RM300, depending on the difference between the speed limit and the driven speed.
A road speed limit is the limit of speed allowed by law for road vehicles, usually the maximum speed allowed. Occasionally, there is a minimum speed limit. Speed limits are commonly set by the legislative bodies of national or local governments.
A speed limiter is a governor used to limit the top speed of a vehicle. For some classes of vehicles and in some jurisdictions they are a statutory requirement, for some other vehicles the manufacturer provides a non-statutory system which may be fixed or programmable by the driver.
Road speed limits in the United Kingdom are used to define the maximum legal speed for vehicles using public roads in the UK, and are one of the measures available to attempt to control traffic speeds. The speed limit in each location is indicated on a nearby traffic sign or by the presence of street lighting. Signs show speed limits in miles per hour (mph) or use the Clearway symbol.
The first maximum speed law for Mexico was created in 1903 by then president Porfirio Díaz. It established a maximum of 10 km/h (6 mph) for small and crowded streets, and 40 km/h (25 mph) elsewhere.
General speed limits in Germany are set by the federal government. All limits are multiples of 10 km/h. There are two default speed limits: 50 km/h (31 mph) inside built-up areas and 100 km/h (62 mph) outside built-up areas. While parts of the autobahns and many other freeway-style highways have posted limits up to 130 km/h (81 mph) based on accident experience, congestion and other factors, many rural sections have no general speed limit. The German Highway Code (Straßenverkehrsordnung) section on speed begins with the requirement which may be rendered in English:
Any person driving a vehicle may only drive so fast that the car is under control. Speeds must be adapted to the road, traffic, visibility and weather conditions as well as the personal skills and characteristics of the vehicle and load.
Speed limits in the Czech Republic vary depending on the type of road, and whether the road is within a settlement or not. The top speed limit is 130 km/h (81 mph) for motorways outside of settlements, whereas on regular roads within a settlement the speed limit is 50 km/h (31 mph). outside of the settlement and other than motorway the speed limit is 90 km/H. Various other special restrictions are applied for certain types and weight categories of vehicle.
Speed limits in Croatia are regulated by the Road Traffic Safety Act.
The default speed limits in the Netherlands are 50 km/h (31 mph) inside built-up areas, 80 km/h (50 mph) outside built-up areas, 100 km/h (62 mph) on expressways (autowegen), and 130 km/h (81 mph) on motorways (autosnelwegen). On September 1, 2012, the motorway default speed limit was raised from 120 km/h (75 mph) to 130 km/h (81 mph) , but it applies to only 48% of all motorways with the intent of 60% of motorways.
The speed limit for cars in Ukraine are as follows:
The general speed limits in Tunisia are:
The Light Tank, T1 was a United States Army light tank of the late 1920s and early 1930s that was only built in prototype form. The tank was an Army design built by James Cunningham, Son and Company. Introduced in 1927, it was developed up through 1932 as a series of modified versions. The tank was never mass-produced, nor was it ever used in combat.
Four general speed limits apply on roads in Serbia:
Speed limits in the United States vary depending on jurisdiction. Rural freeway speed limits of 75 to 80 mph are common in the Western United States, while such highways are typically posted at 65 to 75 mph in the Eastern United States. States may also set special speed limits for trucks and night travel along with minimum speed limits. The highest speed limit in the country is 85 mph (140 km/h), which is posted on a single stretch of tollway in rural Texas.
The general speed limits in Belgium are as follows:
- ^Since 1 January 2017.
