Contents. Introduction Preface Numerical terms Alphabetical terms Appendices

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1 Contents Introduction... 5 Preface... 5 Numerical terms... 7 Alphabetical terms Appendices Greek characters Mathematical symbols British American translations American British translations Conversions of measures and units Gradient conversion table Typical coefficients of friction Maximum lengths of vehicles (UK) Maximum widths of vehicles Vehicle age classifications International accident rates Great Britain, arterial routes, and motorways Euroroutes (E routes) USA, interstate highways and US highways Countries/sovereign territories in which the rule of the road is to drive on the LEFT, with their distinguishing sign letters Countries/sovereign territories in which the rule of the road is to drive on the RIGHT, with their distinguishing sign letters e-mark and E-mark approval country identification numbers Countries/States with no upper speed limit on some roads UK speed limit changes by dates Vehicle emission tax bands (UK) Winter braking distances at 30 km/h (20 mph) Overall stopping distances Tyre sidewall decode Tyre load index codes Tyre speed rating codes Wide loads (UK) VIN number decode UK vehicle registration codes Racing flags Formula 1 world champions Rally pace notes, bend designations Endorsement offence codes Risk of collision due to blood alcohol levels Junction styles

2 ddd d D, diagonal construction, crossply, a designation within a tyre size coding. D, diesel. D, diesel, an oil approved for use by CCMC in diesel engines. D, drive, on an automatic gearbox it allows automatic selection by the gearbox of the best forward gear to match road speed and the power demand from the driver. D, down, on a road rally typically a lower spot height. D, dysgwr, Welsh, learner, a plate bearing the letter D signifying the driver is a learner, permitted in Wales as an alternative to an L plate. D, Germany, international vehicle distinguishing sign, see appendices. D, a hire car size and price category for cars based upon their floor pan; a medium sized family car that will seat 5 with comfort, e.g. Audi A6, or BMW 5-series sized. D, does not meet security requirements, referring to insurance sub grouping. D, dynamo live, the terminal having the live output from the dynamo. D, Europe, a driving licence category for any bus having more than 8 passenger seats, and permitting drawing of a trailer up to 750 kg MAM. D, USA, a driving license and vehicle category for cars and any motor vehicle with a GVWR not exceeding 16,000 lbs (7.25 tonnes) except those vehicles requiring a class A, B, C, L, or M, license. D, a write-off category in which the damage is confined to windows, locks, and/or bent panels, but where the car remains roadworthy, e.g. the state in which stolen cars are typically recovered after the insurer has paid out. D1, a European driving licence category for minibuses having between 9 and 16 passenger seats, and permitting drawing of a trailer up to 750 kg MAM. D1, the lowest drive gear on an automatic gearbox, it restricts automatic selection by the gearbox to the lowest forward gear only. D1, dual single lane carriageways. D1+E, a European driving licence category for minibuses drawing a trailer where the minibus is in subcategory D1 and its trailer has a MAM exceeding 750 kg, provided that the MAM of the combination thus formed does not exceed 12,000 kg and the MAM of the trailer does not exceed the kerbweight of the minibus. D2, a drive mode on an automatic gearbox, it restricts automatic selection by the gearbox to the 2 lowest forward gears only. D2, dual 2 lane carriageways. D3, a drive mode on an automatic gearbox, it restricts automatic selection by the gearbox to the 3 lowest forward gears only. D3, dual 3 lane carriageways. D4, a drive mode on an automatic gearbox, it restricts automatic selection by the gearbox to the 4 lowest forward gears only, on a 4 speed system it is merely D. D band, a VED category within which vehicles emitting over 185 g/km of CO 2 are charged. D pillar, the rearmost side pillar joining the roof to the body on an estate car. D segment car, a size category for cars based upon their floor pan; a medium sized family car that will seat 5 with comfort, a common size as a repmobile. dab, a short operation of some controls, especially the footbrake or accelerator, usually causing jerky driving. DAG, Drivers Action Group, a pressure group, UK. dagmar, USA, each of a pair of large bullet shaped bumper protrusions, fashionable on some 1950s cars, named after a buxom TV personality. daily checks, a sequence of checks to all critical vehicle systems typically prompted by the mnemonic POWER, for checks of petrol, oils, waters, electrics, rubbers. daily driving, when referring to EC drivers hours, any period of 24 hours beginning when work starts, in which 9 hours may be spent driving, increased to 10 hours twice per week, with a 45 minute break after maximum 4 1 / 2 hours driving or multiples of 15 minute breaks totalling 45 minutes in the same period. daily duty, when referring to domestic drivers hours, a driver must not be on duty for more than 11 hours per day. daily rest period, when referring to EC drivers hours, a time of at least 1 hour when the driver is free to dispose of the time as wished, with a minimum of 11 consecutive hours daily rest, reducing to 9 hours on not more than 3 days in the week, providing equivalent rest is taken the following week. 79

3 Winter braking distances at 30 km/h (20 mph) dry tarmac wet tarmac snow * ice ** metres metres metres metres standard tyres snow tyres studded tyres snow chains Notes: The braking distance figures do NOT include thinking and reaction distance, for overall stopping distances add 6 metres to all figures. * The figures for snow assume it is of large flakes, dry, and frozen, i.e. stopping distances will be significantly longer in powder snow and wet snow. ** The figures for ice assume it is not wet, i.e. stopping distances will be significantly longer on wet ice. Braking distance is proportional to the square of the roadspeed, therefore if speeds are doubled to 60 km/h (40 mph) all above figures must be multiplied by 4. Overall stopping distances Tyre sidewall decode European metric 185 / 70 R 15 European 155 / 65 H R 14 speed rating European DIN load rating speed rating / 60 R V

4 Rally pace notes - bend designations There are several methods in use for defining the sharpness of a bend. The two systems shown here are the most common. 344 Endorsement offence codes Code Offence Penalty points Accidents AC10 Failing to stop after an accident 5-10 AC20 Failing to give particulars or to report an accident 5-10 AC30 Undefined accident offences 5-10 Disqualified driver BA10 Driving whilst disqualified by order of a court 6 BA30 Attempting to drive whilst disqualified by order of a court 6 Careless driving CD10 Driving without due care and attention 3-9 CD20 Driving without reasonable consideration for other road users 3-9 CD30 Driving without due care and attention or without reasonable consideration for other road users 3-9 CD40 Causing death through careless driving when unfit through drink 3-11 CD50 Causing death through careless driving when unfit through drugs 3-11 CD60 Causing death through careless driving with alcohol level above the limit 3-11 CD70 Causing death through careless driving then failing to supply a specimen for analysis 3-11

5 Risk of collision due to blood alcohol levels Junction styles 347

6 Euro metric 145 / R 13 USA P metric P 205 / 60 V R 15 passenger car speed rating USA P metric P 195 / 65 R 14 passenger car Temporary spare tyre T 115 / 70 D 13 temporary spare diagonal construction Alpha metric G R load rating Numeric section width (inches) non- Light truck metric LT 205 / 75 R 16 Floatation overall diameter (inches) section width (inches) Alpha numeric size code Numeric section width (inches) non- 31 x R 16 LT L R LT LT 339