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
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.
We translated the iRAP Methodology fact sheets into the following languages to assist:
- French
- Spanish
- Portuguese
The Road Attributes Risk Factor fact sheets have been translated into French to assist also.
iRAP Methodology fact sheets
Fact Sheet 1: Overview
Provides an overview of the Star Rating and Safer Roads Investment Plan processes and a list of fact sheets in the series.
Fact Sheet 2: Development History
Provides an overview of the Star Rating and Safer Roads Investment Plan development history.
Fact Sheet 2a: Model Versions
Provides an overview of Star Ratings and Safer Roads Investment Plan model version management.
Fact Sheet 3: Road Attributes
Lists the road attributes included in iRAP assessments.
Fact Sheet 4: Crash Types
Provides an overview of the road users, crash types and crash initiation modes used in the models.
Fact Sheet 5: External Flow & Median Traversability
Describes External Flow Influence factors.
Fact Sheet 6: Star Rating Score Equations
Describes the iRAP Star Rating Score equations.
Fact Sheet 7: Star Rating Bands
Describes the Star Rating bands and how they were set.
Fact Sheet 8: Smoothed Star Ratings
Provides an overview of the process used to smooth Star Ratings.
Fact Sheet 9: Star Rating Worked Example
Includes a worked example of the way in which Star Ratings are calculated.
Fact Sheet 10: Casualty Estimation & Calibration
Describes how the number of casualties is estimated and models are calibrated.
Fact Sheet 11: Countermeasures
Describes the road safety countermeasures used in the methodology.
Fact Sheet 12: Multiple Countermeasures
Describes how the effectiveness of a countermeasure is estimated when used with others.
Fact Sheet 13: Economic Analysis
Describes the economic analysis used to prioritise countermeasure options.
Fact Sheet 14: Star Ratings for Schools
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
Describes the road attribute risk factors used in the iRAP methodology for Centreline Rumble Strips.
Fact Sheet: Curvature
Describes the road attribute risk factors used in the iRAP methodology for Curvature.
Fact Sheet: Delineation
Describes the road attribute risk factors used in the iRAP methodology for Delineation.
Fact Sheet: Facilities for Bicycles
Describes the road attribute risk factors used in the iRAP methodology for Facilities for Bicycles.
Fact Sheet: Facilities for Motorcycles
Describes the road attribute risk factors used in the iRAP methodology for Facilities for Motorcycles.
Fact Sheet: Grade
Describes the road attribute risk factors used in the iRAP methodology for Grade.
Fact Sheet: Intersection Type
Describes the road attribute risk factors used in the iRAP methodology for Intersection Type.
Fact Sheet: Intersection Channelisation
Describes the road attribute risk factors used in the iRAP methodology for Intersection Channelisation.
Fact Sheet: Intersection Quality
Describes the road attribute risk factors used in the iRAP methodology for Intersection Quality.
Fact Sheet: Lane Width
Describes the road attribute risk factors used in the iRAP methodology for Lane Width.
Fact Sheet: Median Type
Describes the road attribute risk factors used in the iRAP methodology for Median Type.
Fact Sheet: Number of Lanes
Describes the road attribute risk factors used in the iRAP methodology for Number of Lanes.
Fact Sheet: Operating Speed
Describes the road attribute risk factors used in the iRAP methodology for Operating Speed and Mean Speed.
Fact Sheet: Paved Shoulder Width
Describes the road attribute risk factors used in the iRAP methodology for Paved Shoulder Width.
Fact Sheet: Pedestrian Crossing Facilities
Describes the road attribute risk factors used in the iRAP methodology for Pedestrian Crossing Facilities.
Fact Sheet: Pedestrian Crossing Quality
Describes the road attribute risk factors used in the iRAP methodology for Pedestrian Crossing Quality.
Fact Sheet: Pedestrian Fencing
Describes the road attribute risk factors used in the iRAP methodology for Pedestrian Fencing.
Fact Sheet: Property Access Points
Describes the road attribute risk factors used in the iRAP methodology for Property Access Points.
Fact Sheet: Quality of Curve
Describes the road attribute risk factors used in the iRAP methodology for Quality of Curve.
Fact Sheet: Road Condition
Describes the road attribute risk factors used in the iRAP methodology for Road Condition.
Fact Sheet: Roadside Severity – Object
Describes the road attribute risk factors used in the iRAP methodology for Roadside Severity – Object.
Fact Sheet: Roadside Severity – Distance
Describes the road attribute risk factors used in the iRAP methodology for Roadside Severity – Distance.
Fact Sheet: School Zone Warning
Covers the range of advance warning provided for schools.
Fact Sheet: Service Road
Describes the road attribute risk factors used in the iRAP methodology for Service Road.
Fact Sheet: Shoulder Rumble Strips
Describes the road attribute risk factors used in the iRAP methodology for Shoulder Rumble Strips.
Fact Sheet: Sidewalk Provision
Describes the road attribute risk factors used in the iRAP methodology for Sidewalk Provision.
Fact Sheet: Sight Distance Restriction
Describes the road attribute risk factors used in the iRAP methodology for Sight Distance Restriction.
Fact Sheet: Skid Resistance / Grip
Describes the road attribute risk factors used in the iRAP methodology for Skid Resistance/Grip.
Fact Sheet: Speed Management / Traffic Calming
Describes the road attribute risk factors used in the iRAP methodology for Speed Management/ Traffic Calming.
Fact Sheet: Street Lighting
Describes the road attribute risk factors used in the iRAP methodology for Street Lighting.
Fact Sheet: Vehicle Parking
Describes the road attribute risk factors used in the iRAP methodology for Vehicle Parking.
Fact Sheet: Full Reference List
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
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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 are accredited to undertake iRAP-specification activities.
| Organisation | Country | Survey* | Coding | Analysis and Reporting | Lead contact |
| AMSS CMV | Serbia | ✔ | ✔ | ✔ | Nikola Galovic |
| AMZS | Slovenia | ✔ | ✔ | Jure Kostanjiek | |
| APSA | Chile | ✔ | ✔ | Juan Niemann | |
| ARRB Group | Australia | ✔ | ✔ | Blair Turner | |
| Certare | Brazil | ✔ | ✔ | Diego França | |
| CityPlan | Czech Republic | ✔ | ✔ | ✔ | Petr Satra |
| Comtacti | Brazil | ✔ | ✔ | Carlos Joffe | |
| Dynatest | Brazil | ✔ | ✔ | Julio César Braulino | |
| FPZ | Croatia | ✔ | ✔ | ✔ | Marko Ševrović |
| Geovista Technologies | India | ✔ | Srikanth Nori | ||
| ICT | India | ✔ | ✔ | ✔ | Dr. P K Sikdar |
| IMT | Mexico | ✔ | ✔ | Dr. Alberto Mendoza | |
| Imtraff | Brazil | ✔ | ✔ | Frederico Rodrigues | |
| Inter Consultant | Tanzania | ✔ | Marco Bee | ||
| IRSM | India | ✔ | ✔ | ✔ | Abhishek Tiwari |
| Metro Cubico Engenharia | Brazil | ✔ | Filipe Santos Pinto | ||
| PaveSys Engenharia | Brazil | ✔ | ✔ | ✔ | Elemar Taffe Jr |
| Prodec Consultoria | Brazil | ✔ | Jorge Hijas Zidde | ||
| Projevias | Brazil | ✔ | ✔ | Rodrigo Floriano de Souza | |
| RACC | Spain | ✔ | ✔ | ✔ | Lluis Puerto |
| RoadKorea | Korea | ✔ | ✔ | Lee Jung Hun | |
| Satra | India | ✔ | Rajshekar Gotimukul | ||
| SEMIC | Mexico | ✔ | ✔ | ✔ | Agustin Oseguera |
| Transportation Solutions | Greece | ✔ | ✔ | ✔ | Stelios Efstathiadis |
| TRL | United Kingdom | ✔ | Darren Divall | ||
| VNA Consulting | South Africa | ✔ | ✔ | ✔ | Yeshveer Balaram |
See the complete list of activity accredited suppliers with company and individuals here.
To perform road survey, the following accredited inspection systems are accredited in accordance with iRAP specifications:
| Supplier | Headquarters | Inspection system |
| AMZS | Slovenia | AMZS RDVS |
| AMSS CMV | Serbia | CAMSS |
| ARRB Systems | Australia | Hawkeye 2000 |
| BZT | China | BZT / RAPID |
| Certare | Brazil | CERTARE R3S |
| CityPlan | Czech Republic | Floating Car |
| Comtacti | Brazil | Omni 7 |
| DCL | New Zealand | ROMDAS |
| FPZ | Croatia | FPZ |
| GeoVista | India | Mobile Video Mapping |
| Pavesys | Brazil | LVC-Vídeorregistro |
| SEMIC | Mexico | SEMIC |
| YonaPMS | Israel and Brazil | Yona |
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 or would like to become an accredited supplier which is able to tender for iRAP projects, then please contact:
Alessandra Francoia
Training and Accreditation Coordinator
alessandra.francoia@irap.org
