Resources

Everything you need – at your fingertips!

 

Resources

iRAP produces a wide range of resources to support road safety practitioners and advocates.

These include practical guides to the iRAP methodology, interactive road assessment tools such as Star Rating Demonstrator and our core advocacy publication Vaccines for Roads.

We also host one of the largest online databases of thought leadership publications on road safety techniques and in-depth inspection reports on national roads.

ViDA

All the iRAP road survey data which is gathered around the world, is processed through ViDA, our central data base.

It’s easy-to-use and contains the results from almost 1,000,000km of road assessments. You can use it to create life-saving Star Ratings and Safer Road Investment Plans.  One of the great things about ViDA is that it uses a ‘risk worm’ to segment roads into different levels of risk. This means you can target investment to deliver the biggest return in lives saved and serious injuries prevented.

We’re constantly updating ViDA to make it even more flexible and easy to use.

 

You can register to use ViDA for free

Training

iRAP offers a wide range of training courses for partners and prospective partners. Training can be undertaken in a classroom or online environment and is a great way to share learning.

The Introduction to iRAP powerpoint slidescan be a great starting point if you are running an information session in your country to build local awareness and capacity.  If you plan to use the slides make sure you talk to the programme lead in your country to coordinate the session with local activity and experts.

Project Specific Workshops

iRAP, our Centres of Excellence or accredited project teams can develop and deliver tailored training courses for your team or country.  Training is best linked to a real application of the iRAP protocols in your location (e.g. star rating a real design, star rating a small length of existing road, risk mapping) so that you can learn while you are doing. Those skills can then be extended to other assessments by your road agency or organization.

To organise training for your team contact greg.smith@irap.org

The University of Birmingham

The University of Birmingham (UK) iRAP course in Road Safety introduces people to the iRAP technology for evaluating the safety impact of road infrastructure.

By the end of the course, the participants are expected to have acquired an understanding of the following key items:

  • The fundamentals of the iRAP approach to risk assessment and mitigation
  • The concept of star rating based on inspection data and road designs
  • The principles of developing a safer roads investment plan

The course includes practical exercises, discussions and exposure to the iRAP software. The course is delivered in the state-of-the-art teaching and learning facilities of the University of Birmingham.

Enrol in the University of Birmingham course now.

RAPcapacity

RAPcapacity online courses help people learn how to undertake iRAP-specification road assessments.
The courses available are:

  • Getting started and accessing results
  • Risk Mapping and Performance Tracking
  • Star Rating and Investment Plans from inspections
  • Star Rating and Investment Plans from design
  • Road attribute coding

Global Alliance of NGOs for Road Safety Webinar Series

The Global Alliance of NGOs for Road Safety and iRAP developed a six-part series about the iRAP Star Ratings and how to build partnerships for life-saving success in your country.  See our Where's the risk webinar for all the details.

Other useful courses

Our partners, such as the IRF and PIARC, run a wide range of useful courses around the world on infrastructure, transport policy and mobility that are influential in shaping safer roads policy.  A selection of these courses and resources can be viewed here.

 

IRF – Safer Roads by Design™

The International Road Federation has developed a series of Road Safety Seminars (Safer Roads by Design™) to provide road authorities with best practices and latest technologies that can be implemented to meet a country’s commitment to the Decade of Action.
Safer Roads by Design™ is an all-inclusive approach to road safety and includes seminars on the fundamentals of Road Safety, Roadside Safety, Work Zone Safety, Intersection/Roundabout Safety and Vulnerable User Safer.

PIARC Road Safety Manual

The PIARC Road Safety Manual (https://roadsafety.piarc.org/en) is an online resource established and maintained by the World Road Association. The manual provides guidance on the safe planning, design, operation and use of the road network in low, middle and high-income countries. The manual highlights effective management and policy frameworks, technical references and provides overall guidance on the management of interventions to achieve results.

The ‘iRAP Methodology’ fact sheets describe the Star Rating and Safer Roads Investment Plan methodologies, while the ‘iRAP Road Attribute Risk Factors’ fact sheets describe the risk factors used in the models.

iRAP Methodology fact sheets

Fact Sheet 1: Overview

This fact sheet provides an overview of the Star Rating and Safer Roads Investment Plan processes and a list of fact sheets in the series. Download below:

Fact Sheet 2: Development History

This fact sheet provides an overview of the Star Rating and Safer Roads Investment Plan development history.

Fact Sheet 2a: Model Versions

This fact sheet provides an overview of the Star Rating and Safer Roads Investment Plan model version management.

Fact Sheet 3: Road Attributes

This fact sheet lists the road attributes included in iRAP assessments.

Fact Sheet 4: Crash Types

This fact sheet provides an overview of the road users, crash types and crash initiation modes used in the models.

Fact Sheet 5: External Flow and Median Traversability

This fact sheet describes External Flow Influence factors, which account for the way in which traffic flows can affect the type of crash that an individual road user is involved in.

Fact Sheet 6: Star Rating Score Equations

This fact sheet describes the iRAP Star Rating Score equations.

Fact Sheet 7: Star Rating Bands

This fact sheet describes the Star Rating bands and how they were set.

Fact Sheet 8: Smoothed Star Ratings

This fact sheet provides an overview of the process used to smooth Star Ratings.

Fact Sheet 9: Star Rating Worked Example

This fact sheet includes a worked example of the way in which Star Ratings are calculated.

Fact Sheet 10: Casualty Estimation and Calibration

This fact sheet describes how the number of casualties (fatalities and serious injuries) is estimated and how the models are calibrated.

Fact Sheet 11: Countermeasures

This fact sheet describes the road safety countermeasures used in the methodology.

Fact Sheet 12: Multiple Countermeasures

This fact sheet describes how the effectiveness of a countermeasure is estimated when it is used in combination with other countermeasures.

Fact Sheet 13: Economic Analysis

This fact sheet describes the economic analysis used to prioritise countermeasure options.

Fact Sheet 14: Star Ratings for Schools

This fact sheet describes the background research and development associated with the Star Rating for Schools methodology.

Fact Sheet 15: Model Localisation

This factsheet provides an overview of the functionality provided to localise the Star Rating and Safer Roads Investment Plans.

iRAP Road Attribute Risk Factors

Fact Sheet: Centreline Rumble Strips

This factsheet describes the road attribute risk factors used in the iRAP methodology for Centreline Rumble Strips. Centreline Rumble Strips (also referred to as raised profile centre lines or audible centre lines) can be used to delineate the centre of paved roads. As well as providing visual delineation, Centreline Rumble Strips can also be heard and felt by drivers and riders.

Fact Sheet: Curvature

This factsheet describes the road attribute risk factors used in the iRAP methodology for Curvature. Curvature is a measure of the horizontal alignment of a road.

Fact Sheet: Delineation

This factsheet describes the road attribute risk factors used in the iRAP methodology for Delineation. Delineation is a measure of the road attributes that inform drivers of road conditions to keep them within the driven lane and aware of road ahead.

Fact Sheet: Facilities for Bicycles

This factsheet describes the road attribute risk factors used in the iRAP methodology for Facilities for Bicycles. Facilities for Bicycles records the presence of purpose-built facilities for non-motorised vehicles.

Fact Sheet: Facilities for Motorcycles

This factsheet describes the road attribute risk factors used in the iRAP methodology for Facilities for Motorcycles. Facilities for Motorcycles records the presence of purpose-built facilities for motorised two wheelers.

Fact Sheet: Grade

This factsheet describes the road attribute risk factors used in the iRAP methodology for Grade. Grade is a measure of the gradient of the road along its length. It refers to both upward and downward grades.

Fact Sheet: Intersection Type

This factsheet describes the road attribute risk factors used in the iRAP methodology for Intersection Type. Intersection Type records the presence and type of intersections with gazetted/adopted roads.

Fact Sheet: Intersection Channelisation

This factsheet describes the road attribute risk factors used in the iRAP methodology for Intersection Channelisation. Intersection Channelisation records if there are raised or coloured islands present at an intersection that designate intended vehicle paths.

Fact Sheet: Intersection Quality

This factsheet describes the road attribute risk factors used in the iRAP methodology for Intersection Quality. Intersection Quality is a measure of the intersection design, advance warning, signing, and marking.

Fact Sheet: Lane Width

This factsheet describes the road attribute risk factors used in the iRAP methodology for Lane Width. Lane Width is the distance from the centre of the shoulder marking to the centre of the adjacent lane marking or the centreline marking.

Fact Sheet: Median Type

This factsheet describes the road attribute risk factors used in the iRAP methodology for Median Type. Median Type records the road infrastructure that separates opposing traffic flows.

Fact Sheet: Number of Lanes

This factsheet describes the road attribute risk factors used in the iRAP methodology for Number of Lanes. Number of Lanes records the total number of lanes in the direction of travel.

Fact Sheet: Operating Speed

This factsheet describes the road attribute risk factors used in the iRAP methodology for Operating Speed and Mean Speed. Operating Speed is used in the calculation of Star Ratings and is the greater of the posted (or official) speed limit or 85th percentile speed. Casualty estimations and economic analyses (in the Safer Roads Investment Plans) are based on mean speeds.

Fact Sheet: Paved Shoulder Width

This factsheet describes the road attribute risk factors used in the iRAP methodology for Paved Shoulder Width.  Paved Shoulder Width refers to the driveable section of pavement outside the edge line.

Fact Sheet: Pedestrian Crossing Facilities

This factsheet describes the road attribute risk factors used in the iRAP methodology for Pedestrian Crossing Facilities. Pedestrian Crossing Facilities records the presence of purpose built facilities to assist pedestrians.

Fact Sheet: Pedestrian Crossing Quality

This factsheet describes the road attribute risk factors used in the iRAP methodology for Pedestrian Crossing Quality. Pedestrian Crossing Quality records how well the crossing can be seen by drivers or if there are warning signs.

Fact Sheet: Pedestrian Fencing

This factsheet describes the road attribute risk factors used in the iRAP methodology for Pedestrian Fencing. Pedestrian Fencing records if there is a fence present that is sufficient to restrict pedestrian crossing flow.

Fact Sheet: Property Access Points

This factsheet describes the road attribute risk factors used in the iRAP methodology for Property Access Points. Property Access Points records the number of low-flow points where vehicles can enter or exit the roadway. This includes commercial and residential driveways and minor access lanes.

Fact Sheet: Quality of Curve

This factsheet describes the road attribute risk factors used in the iRAP methodology for Quality of Curve. Quality of Curve is a measure how easy it is to judge how sharp a curve is and if it can be driven safely.

Fact Sheet: Road Condition

This factsheet describes the road attribute risk factors used in the iRAP methodology for Road Condition. Road Condition records the degree to which the road has an even surface that does adversely affect the travel path of vehicles, motorcycles and bicycles.

Fact Sheet: Roadside Severity – Object

This factsheet describes the road attribute risk factors used in the iRAP methodology for Roadside Severity – Object. Roadside Severity – Object records the nearest object that could result in death or injury to vehicle occupants, motorcyclists and bicyclists if struck. The object recorded is the same as that referred to in Roadside Severity – Distance.

Fact Sheet: Roadside Severity – Distance

This factsheet describes the road attribute risk factors used in the iRAP methodology for Roadside Severity – Distance. Roadside Severity – Distance is a measure of the distance between the edge of the road and the nearest roadside object that would result in death or serious injury to a vehicle occupant, motorcyclist or bicyclist if struck.

Fact Sheet: School Zone Warning

The fact sheet covers the range of advance warning provided for schools.

Fact Sheet: Service Road

This factsheet describes the road attribute risk factors used in the iRAP methodology for Service Road. Service Road records the present of a service road running parallel with main carriageway.  The purpose of a service road is to link the property access and minor intersections together and then join them to the main carriageway at specific point. Note that in the literature the term “frontage road” is also used to describe this attribute.

Fact Sheet: Shoulder Rumble Strips

This factsheet describes the road attribute risk factors used in the iRAP methodology for Shoulder Rumble Strips. Shoulder Rumble Strips (also referred to as raised profile edge lines or audible edge lines) can be used to delineate the edge of paved roads. As well as providing visual delineation, Shoulder Rumble Strips can also be heard and felt by drivers and riders.

Fact Sheet: Sidewalk Provision

This factsheet describes the road attribute risk factors used in the iRAP methodology for Sidewalk Provision. Sidewalk Provision refers to the provision of an area (a sidewalk or footpath) at the side of the road for pedestrians. The sidewalk can be either ‘formal’ or ‘informal’.

Fact Sheet: Sight Distance Restriction

This factsheet describes the road attribute risk factors used in the iRAP methodology for Sight Distance Restriction. Sight Distance Restriction refers to the ability of a driver or motorcycle rider to see pedestrians or bicyclists either in the roadway or about to cross the road ahead, or vehicles or motorcycles at an intersection.

Fact Sheet: Skid Resistance / Grip

This factsheet describes the road attribute risk factors used in the iRAP methodology for Skid Resistance/Grip. This attribute records the general characteristics of the road surface with regard to grip.  Formally, it relates to the force developed when a tire that is prevented from rotating slides along the pavement surface (Highway Research Board, 1972).

Fact Sheet: Speed Management / Traffic Calming

This factsheet describes the road attribute risk factors used in the iRAP methodology for Speed Management/ Traffic Calming. Speed Management/Traffic Calming records the presence of facilities judged to have the ability to reduce the operating speed 10km/h below the speed limit (on roads adjacent to or adjoining the traffic-calmed sections).

Fact Sheet: Street Lighting

This factsheet describes the road attribute risk factors used in the iRAP methodology for Street Lighting. Street Lighting records the presence of lighting that is sufficient to provide illumination for vehicle occupants, motorcyclists, pedestrians and bicyclists.

Fact Sheet: Vehicle Parking

This factsheet describes the road attribute risk factors used in the iRAP methodology for Vehicle Parking. Vehicle Parking records the extent to which there is parked vehicles obstruct pedestrians or bicyclists.

Fact Sheet: Full Reference List

This factsheet provides a complete list of citations used in the selection of iRAP road attribute risk factors.

Model Updates

iRAP is a charity and encourages partners and supplier networks to develop their own skills to lead, undertake and implement iRAP assessments.

Ensure you make contact with the programme lead in your country to ensure your project involves the necessary local stakeholders and is integrated with existing and planned work in the country.  Refer to "Where we work" for details.

In order to support our partners around the world we produce a compact range of documents that outline our technical  requirements and the context of our work.  They are regularly revised to include best practice and new learning.

Specifications

iRAP produces a number of  specifications that can be used in the procurement and management of iRAP-specification activities.

The specifications include:

  • A standard ‘Terms of Reference’ that can be used as the basis of a project plan and/or in the process of engaging consultants to deliver services
  • Minimum specifications for an iRAP Inspection (survey and coding).
  • Minimum specifications for the collection of supporting data.

View all our Manuals and Terms of Reference below

Star Rating and Investment Plans

iRAP produces a small number of regularly updated manuals which are our essential guides to practice. They are designed to be used in conjunction with our specification fact sheets.

Risk Mapping

Search our Image Archive

Search our Archive of documents

Search our News Archive

Search our Video Archive

Search our Case Study archives

Road Safety Toolkit

The Road Safety Toolkit provides free information on the causes and prevention of road crashes that cause death and injury.  Building on decades of road safety research, the Toolkit helps engineers, planners and policy makers access relevant information on countermeasure design, effectiveness, cost and implementation issues.

The Road Safety Toolkit is the result of collaboration between  iRAP, the Global Transport Knowledge Partnership (gTKP), ARRB Group, Austroads, the Global Road Safety Facility, Road Safety Fund and FIA Foundation.

Accredited suppliers

A network of road safety professionals and companies capable of competitively bidding to provide high-quality iRAP assessments is growing.

The following table lists companies that have experience in delivering iRAP projects and/or are accredited to undertake iRAP-specification surveys.

Supplier Headquarters Website Project manage Survey * Coding Analysis and reporting
ARRB Group Australia www.arrb.com.au Yes Yes Yes Yes
IMT Mexico www.imt.mx Yes Yes
MIROS Malaysia www.miros.gov.my Yes Yes Yes
MRI Global USA www.mriglobal.org Yes Yes
TRL UK www.trl.co.uk
Yes Yes
AMSS CMV Serbia www.amss-cmv.co.rs Yes Yes Yes Yes
AMZS Slovenia www.amzs.si Yes Yes Yes  Yes
APSA Chile www.apsa.cl Yes Yes
CityPlan Czech Republic www.af-cityplan.cz Yes Yes Yes  Yes
Certare Brazil http://www.certare.com.br/ Yes
FERBA Bangladesh www.ferbainstruments.com Yes  Yes
FPZ Croatia www.fpz.hr Yes Yes Yes  Yes
Geovista Technologies India www.geovista.in Yes Yes
IRSM India www.irsm.in Yes Yes
ICT India www.ictonline.com Yes Yes Yes Yes
RACC Spain w3.racc.es Yes Yes Yes Yes
RIOH China www.rioh.cn Yes Yes Yes Yes
Renardet S.A. Oman www.renardet.net Yes
RoadKorea Korea www.roadkorea.co.kr Yes Yes
Satra India www.satragroup.in Yes
Siteco Italy www.sitecoinf.it Yes
SEMIC Mexico www.semicmex.com.mx Yes Yes Yes
YonaPMS Israel and Brazil www.yonapms.com Yes Yes
Transportation Solutions Greece www.t-s.gr  Yes Yes Yes Yes
Dynatest Brazil www.dynatest.com Yes Yes
PaveSys Engenharia Brazil www.pavesys.com Yes Yes

 

* Companies listed in this column are accredited to conduct surveys in accordance with: Star Rating Inspection System Accreditation Specification and Record. The other columns are based on project experience.

To streamline the road survey accreditation process, a number of type-approved inspection systems are available. Operators of these type-approved inspection systems may fast-track their survey accreditation.

Supplier Headquarters Website Inspection system
ARRB Group Australia www.arrb.com.au Hawkeye 2000
DCL New Zealand www.romdas.com ROMDAS

iRAP can assist in the planning and procurement for a programme directly if required.

For more information

If you would like to build the capacity to undertake iRAP assessments within your government agency or would like to become an accredited supplier that is able to tender for iRAP projects, then please contact:

James Bradford
Global Product Director
james.bradford@irap.org

Get in touch with us to find out more information