The maximum speed limit on UK roads is 70mph, the Highway code does not need to provide stopping distances above that speed as the road user is already breaking the law.
Factors that can decrease stopping distances while driving include reduced speed, improved road conditions, proper tire maintenance, and maintaining a safe following distance from other vehicles. Additionally, paying attention to the road and avoiding distractions can also help reduce stopping distances.
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The maximum speed limit on UK roads is 70mph. If you want to know the stopping distances for speed not given in the Highway Code, then the formula used is: speed ft thinking distance + speed² / 20 ft braking distance where the speed is in mph. eg 20 mph: 20 ft + 20² / 20 ft = 20 ft + 20 ft = 40 ft eg 70 mph: 70 ft + 70² / 20 ft = 70 ft + 245 ft = 315 ft If you want to know what 315 ft looks like, in metres it is 315 × 0.3048 m = 96.012 m which is approx 100m which is the distance between the marker posts along the edge of a motorway - if you need to do an emergency stop to avoid a static object on the road, you need to be looking approximately the distance between the marker posts up the road! The stopping distances have not be changed since they were first included in the Highway Code despite the improvement in car brakes; when I bought my current car in the showroom was a display about tyres and why you should always have good tread: it gave the braking distance for a minimum legal tread (1.6mm) on wet roads from 50 mph the same as what the Highway Code describes as the braking distance from 50 mph using good tyres and a dry road (ideal conditions). Also, when doing the test for a Coach, the same stopping distances are used - a 23 tonne coach (a tri-axle coach which most are these days) running at its limited speed of 100 km/h (62½ mph) will take the (approx) 260 ft (80 m) to stop (at least - the driver's priority is the safety and comfort of their passengers, not the idiot who cuts in front and reduces the available stopping distance), so think very carefully before you pull in front of one and expect it to stop. An articulated lorry will have even more weight and although it is limited to 90 km/h (56 mph), it will still take at least the (approx) 215 ft (65 m) to stop in an emergency (I'd give it 100m to be sure).
In 2010 it covered 47,182 miles.
The components of a highway system typically include the roadway, which consists of lanes for vehicle travel; shoulders for emergency stopping and breakdowns; interchanges and intersections for traffic management; and signage for navigation and safety. Additionally, it encompasses drainage systems to manage water runoff, barriers for safety, and rest areas for driver convenience. Supporting infrastructure, such as bridges and tunnels, also plays a critical role in maintaining connectivity within the highway system.
There is more than one Pacific Highway. Please edit your question to include more context.
The color of the vehicle does not affect the total stopping distance. Factors that do affect stopping distance include speed, road conditions, driver reaction time, and vehicle condition.
The Department of Transportation through the Federal Highway Administration
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