Documents

WebTAG Glossary

A

AADT

Annual Average Daily Traffic

AFS

Affordability and Financial Sustainability

AMCB

Analysis of Monetised Costs and Benefits

AONB

Area of Outstanding Natural Beauty

APRs

Annual Progress Reports

AQMAs

Air Quality Management Areas

AQS

Air Quality Strategy

ASCs

Alternative-Specific Constants

ASPB

Area of Special Protection for Birds

AST

Appraisal Summary Table

B

BAP

Biodiversity Action Plan

BCR

Benefit/Cost Ratio

BODS

Bus Origin and Destination Surveys

C

CBA

Cost/Benefit Analysis

CH4

Methane

CIF

Community Infrastructure Fund

CMT

Census Matrix Tools

CPO

Compulsory Purchase Order

CO

Carbon Monoxide

CO2

Carbon Dioxide

COBA

Cost Benefit Analysis method software

CWSs

Country Wildlife Sites

D

dB

Decibel - standard measurement for noise

DELTA

Activity Based Model

DETR

Department of the Environment, Transport and the Regions

DfT

Department for Transport

DIADEM

Development of Integrated Assignment and Demand Modeling

DoH

Department of Health

DoT

Department of Transport

DM

Do Minimum

DMRB

Design Manual for Roads and Bridges

DMU

Diesel Multiple Unit

DN

Do Nothing

DS

Do Something

E

EGRUP

Evaluation Group on Regional and Urban Programmes

EIA

Environmental Impact Assessment

EIR

Economic Impact Report

EPA

Estimated Population Annoyed

ETM

Electronic Ticket Machine

F

FES

Family Expenditure Survey

FR

Forecasting Report

FYBCR

Forecast Year Benefit/Cost Ratios

G

GCR

Geological Conservation Review Sites

GDP

Gross Domestic Product

GEH

This is a form of chi-squared statistic used to assess goodness of fit of a model (see DMRB volume 12, section 2, part 1)

GIS

Geographic Information Systems

GNATA

Guidance on the New Approach to Appraisal

GO

Government Office

GOMMMS

Guidance on the Methodology for Multi-Modal Studies

GQA

General Quality Assessment

H

HA

Highways Agency

HEN 1

Highways Economics Note - Valuation of the Benefits of Prevention of Road Accidents and Casualties

HETA

Highways Economics and Traffic Appraisal, DfT

HOV

High Occupancy Vehicle

HSAM

Heathrow Surface Access Model

I

ICG

Interim COBA Guidance

IHT

Institution of Highways and Transport

ISGLUTI

International Study Group on Land-Use Transport Interaction

ITEA

Integrated Transport Economics and Appraisal Division, DfT

ITS

Intelligent Transport Systems

IVT

In-Vehicle Time

K

KSI

Number of People Killed or Seriously Injured in Road Accidents

L

LAQM

Local Air Quality Management

LGVs

Light Goods Vehicles

LHA

Local Highway Authority

LMVR

Local Model Validation Report

LNRs

Local Nature Reserves

LOCCOP

Computer model estimated on census data

LOS

Level of Service

LTP

Local Transport Plan

LUTI

Land-Use/Transport Interaction

M

ML

Maximum Likelihood

MMS

Multi-Modal Studies

MNRs

Marine Nature Reserves

MSA

Method of Successive Averages or Motorway Service Area

N

N2O

Nitrous Oxide

NATA

New Approach To Appraisal

NATCOP

Model which can produce forecasts of the number of households with 0, 1 and 2+ cars

NCA

Non Car Available

NCR

National Conservation Review

NNR

National Nature Reserve

NO2

Nitrogen Dioxide

NOx

Oxides of Nitrogen

NPV

Net Present Value

NRTF

National Road Traffic Forecasts

NTEM

National Trip End Model

NTM

National Transport Model

NTS

National Travel Survey

O

OB

Optimism Bias

OD

Origin/Destination

OGV1

Goods Vehicles with 2 or 3 axles

OGV2

Goods Vehicles with 4 or more axles

OS

Ordnance Survey

P

PA

Production/Attraction or Public Accounts Table

PAR

Project Appraisal Report

PCBs

Polychlorinated Biphenyls

PCU

Passenger Car Unit

PIA

Personal Injury Accident

PFI

Private Finance Initiative

PM10

Fine Particulate Measures

PPG

Planning Policy Guidance

PSA

Public Sector Agreement

PT

Public Transport

PTE

Passenger Transport Executive

PVB

Present Value of Benefits

PVC

Present Value of Costs

PVCG

Present Value of Cost to Government

PVY

Present Value Year

Q

QRA

Quantified Risk Assessment

QUADRO

Queues and Delays at Road works. DMRB Volume 14

R

RA

Regeneration Area

RIGs

Regionally Important Geological sites

RP

Revealed Preference

RPBs

Regional Planning Bodies

RPF

Regional Planning Framework or Relative Price Feature

RPG

Regional Planning Guidance

RPI

Retail Price Index

RPP

Rail Passenger Partnership

RSI

Roadside Interviews

RTS

Regional Transport Strategy

S

SACs

Special Areas of Conservation

SACTRA

Standing Advisory Committee on Trunk Road Assessment

SAMs

Scheduled Ancient Monuments

SCAs

Supplementary Credit Approvals

SCIs

Sites of Community Importance

SINCs

Sites of Importance to Nature Conservation

SP

Stated Preference

SPA

Special Protection Area

SRA

Strategic Rail Authority

SSRA

Shadow Strategic Rail Authority

SSSI

Site of Special Scientific Interest

STAG

Scottish Transport Appraisal Guidance

T

TAM

Traffic Appraisal Manual

TAUA

Traffic Appraisal in Urban Areas

TEE

Transport Economic Efficiency

TEMPRO

DFT National trip end programme (see www.tempro.org.uk)

TEN

Transport Economics Note (replaced by WebTAG Unit 3.5.6)

TIF

Transport Innovation Fund

TOCs

Train Operating Companies

TUBA

Transport User Benefit Appraisal Software

TWA

Transport and Works Act

U

UDP

Unitary Development Plan

URECA

Urban Economic Assessment (this is superseded by TUBA)

UTC

Urban Traffic Control

UTMC

Urban Traffic Management Control

V

VAT

Value Added Tax

VfM

Value for Money

VMS

Variable Message Signs

VOCs

Volatile Organic Compounds or Vehicle Operating Costs

VOT

Value of Time

W

WebTAG

Web Based Transport Analysis Guidance

WHO

World Health Organisation

WTP

Willingness to Pay

Updated: April 2009