|
|
|
|
|
|
|
|
|
|
|
|
Site Design by WebSelect Internet
Throughout the site are terms that may be unknown to the general public.
The explanations to these are provided by pop-up windows where the terms appear, but this glossary section contains a full, comprehensive list for easy reference.
To find the term you would like explaining, click on the initial letter or number above. From the list of terms that appears underneath this, you can browse to the one you wish to view. Clicking on it will take you to the explanation of that term, appearing in this right hand pane. All explanation links are in aphabetical order, and can easily be reached from any part of this section.
The 85th Percentile is the speed up to which 85% of traffic is travelling. It is a measure that for many years has been used by highway authorities to determine the most appropriate speed limit.
For example: If the 85th percentile speed within a 30 mph area is measured at 41 mph, this would indicate that 85% of traffic is travelling at 41 mph or less. It would also indicate that the remaining 15% of vehicles are travelling at speeds greater than 41 mph.
Assistant Chief Constable.
Association of Chief Police Officers.
Automatic Number Plate Recognition. A Policing tool consisting of cameras linked to sources such as the Police National Computer and DVLA database. As a vehicle passes, the ANPR equipment reads the number plate and checks it against these sources.
This is the name for safety camera signs that are used to signify the start and end of each route. They are recognisable as a camera encased by a white square with a black border.
Best Value. It is a legal responsibility on the Police Authority that:
• challenges our aims and objectives
• identifies the nature of local needs
• examines our capacity to meet these needs; and
• our resources available in the short and long term.
Also known as Category 3 Sites, or 15% Tolerance Sites. They are roads that do not meet the site selection criteria. However, members of the community have raised concern over speed. In Derbyshire there will, in the normal course of events, be at least one injury collision before consideration for speed enforcement.
Chief Constable.
Collision Investigator. Normally a representative from the Police. They identify and preserve as much evidence as possible from the scene of an accident.
Criminal Justice. The department of which the CTO is part of, within Derbyshire Constabulary.
Conditional Offer of a Fixed Penalty Notice. See FPN.
Guidance on ensuring cameras / sites / vehicles / persons are fully visible - issued by the Department for Transport.
Sites that have been assessed as requiring the most casualty and speed reduction.
Crown Prosecution Service. The CPS is responsible for organising and presenting any cases where an offender is to be prosecuted in a Court of Law.
Central Ticket Office. The processing office which deals with Conditional Offers and Fixed Penalty Notices, as well as general enquiries and correspondence.
Department for Transport.
If you have committed a series of motoring offences and accumulate 12 points or more you will face a driving disqualification.
Driver and Vehicle Licensing Agency. Responsible for issuing driving licences and adding endorsements for any motoring offences committed.
Fixed Penalty Notice. If you are caught speeding, as long as you have no more than 8 points on your licence you will be sent an FPN. This gives the opportunity to settle the matter out of court i.e. £60 fine and 3 points on your licence.
Fixed Penalty Office. If a Conditional Offer is received, it must be taken along with a complete driving licence and full payment to the Fixed Penalty Office to be processed.
Fine Registration Certificate. This is a certificate sent to an offender's home court, advising that court, that the offender is to pay a fine.
Rear-facing static safety camera.
Highways Agency. The HA is responsible for trunk roads that run through Derbyshire, including the installation and maintenance of safety cameras on these roads.
Specially constructed parking spaces for mobile camera vans, where they can operate visibly, safely and effectively.
Responsible for the endorsement of driving licences and acceptance of payments in relation to speeding and red light offences.
Home Office. Government department responsible for ensuring a safe, just and tolerant society in Britain.
Killed or Seriously Injured.
Large Goods Vehicle. Vehicles over 7.5 tonnes are subject to lower speed limits.
Device buried in the road surface which is used for passively recording traffic speed profiles.
No Further Action.
National Health Service. Name for the combined public medical services in the UK.
Notice of Intended Prosecution. The registered owner of a vehicle, that has allegedly been caught committing an offence by a safety camera, will be issued with an NIP for the driver to complete.
Form of endorsement after being convicted of a motoring offence. The number of points awarded varies according to the nature and seriousness of the offence.
Personal Injury collisions. Includes all categories of injury (slight, serious or fatal).
Piezometers. A method of operating Truvelo cameras.
A safety camera that detects and photographs vehicles that pass through red traffic lights.
Circular sign showing the speed limit of the road in the centre.
Road Traffic Accident. Where owing to the presence of a mechanically propelled vehicle on a road or other public place, an accident occurs by which injury is caused to person or persons.
Road Traffic Collision.
Collective name for both speed cameras and red light cameras.
Sole UK Agents for Gatso Safety Cameras.
Producers of software and equipment for reading safety camera films.
Minimum distances required to stop safely at various speeds. For more information please see stopping distance page.
Total number of vehicles passing a location during a traffic speed survey.
Transport Research Laboratory. A UK centre for research into all aspects of transport safety.
A trunk road is an 'A' road maintained by the Highways Agency.
Type of static safety camera which has the ability to take front and rear facing photography.
Traffic Signs Regulations and General Directions, as set out by the Department for Transport.
Vehicle Activated Signs. These are electronic message boards that are triggered by vehicles travelling over a set speed. They usually display a warning for the drivers to slow down.