Data Collection

Road data collection technologies and their application.

Paper to 2014 SATC Conference on evaluation of the Roadroid roughness meter.

Presentation to 2013 Transportation Research Board Conference workshop on road data quality assurance.

Presentation to Data Analysis Working Group (DAWG) at 2013 Transportation Research Board Conference on data collection needs for low volume roads.

Lecture given at the University of Auckland on practical issues related to measuring pavement condition.

Presentation to the 2011 TRB Conference on the World Bank's generic specifications for road and pavement data collection.

Presented at the PIARC 6th Symposium on Pavement Surface Characteristics. 

For over 20 years the World Bank has supported clients in developing countries to procure pavement condition monitoring equipment and/or services.  The success of these projects has been mixed. While some countries have successfully institutionalized sustainable data collection, too many have failed either due to the adoption of overly complex equipment or inadequate institutional capacity.

As a result of this, the Bank has put forth a number of key concepts in an endeavour to ensure appropriate and sustainable pavement condition data collection. These include concepts such as the \'Information Quality Level\', which indicates the appropriate level of data detail given the intended purpose, to developing generic specifications for the procurement of data collection equipment and services.

The presentation shows some of the experiences of the Bank in these different projects, highlighting the key lessons learned and how agencies can better ensure sustainable and appropriate data collection.

The assoicated paper can be downloaded here.

Different types of data are required for managing the road infrastructure. Inventory data describe the physical elements of a road system. Condition data describe the condition of elements that can be expected to change over time. There are a wide range of technologies available to the road manager for measuring attributes of the road network. The challenge is to select the appropriate equipment, given local conditions and the way in which the data are expected to be used. Too often, agencies have adopted data collection technologies which are not sustainable and this has compromised the quality or usefulness of their pavement management system (PMS). This paper presents basic principles for data collection which should be considered in a PMS, highlights key technologies, and presents a method by which an agency can select the most appropriate technology given their specific requirements.

This paper was presented at the 2008 International Conference on Pavement Management in Calgary.

Presented at the PIARC 6th Symposium on Pavement Surface Characteristics. 

For over 20 years the World Bank has supported clients in developing countries to procure pavement condition monitoring equipment and/or services.  The success of these projects has been mixed. While some countries have successfully institutionalized sustainable data collection, too many have failed either due to the adoption of overly complex equipment or inadequate institutional capacity.

As a result of this, the Bank has put forth a number of key concepts in an endeavour to ensure appropriate and sustainable pavement condition data collection. These include concepts such as the \\\'Information Quality Level\\\', which indicates the appropriate level of data detail given the intended purpose, to developing generic specifications for the procurement of data collection equipment and services.

The paper presents some of the experiences of the Bank in these different projects, highlighting the key lessons learned and how agencies can better ensure sustainable and appropriate data collection.

The presentation which accompanies the paper can be downloaded here.

Presentation given in India on how to collect road management data.

Presentation describing the data collection requirements for HDM.

Presentation on data collection technologies for road management. Part of the World Banks GDLN training course on road management and data collection.

Report prepared for the World Bank describing road, bridge and traffic data collection technologies. Also covers principles of data collection. The associated web site for obtaining further data is www.road-management.info.

Technical note is to give a general view of the currently available survey technologies applied to pavements, bridges and traffic. This includes an assessment of the applicability of these technologies in developing countries. Summary of the report Data Collection Technologies for Road Management.

Presentation covering the Cambodian location referencing study.

Presentation discussing data collection technologies

Article from Transearch on how rut depth measurements from different instruments were harmonised

Report on establishing a spatial network in a GIS from collecting the raw data through processing and creating a topologically correct network

Report on how to create a spatial network, from collecting basic data through manipulating it in a GIS.

How data from profilometers with different numbers of sensors can be harmonised. Provides a theoretical analysis of the systematic bias that arises with different profilometers and then uses software to predict the implications of different sensor configurations on systematic bias and other errors.

The phase 2 report which built on the original work can be found here.  The software used for the analysis is also available for download.

Asia Roads Conference. The use of ROMDAS for collecting pavement condition data

Road Profiler User's Group. Describes how transverse reference profiles were established in NZ for pavement deterioration model calibration

Issues and strategy for using spatial measurements on NZ State Highways

Investigation of the viability of using statistical techniques to assess road data quality

Presentation giving an overview of different methods for establishing pavement strength for use in a PMS.

Presentation giving options for institutionalizing PMS data collection.

Presentation giving options for collecting PMS data.

>Presentation describing data collection issues for PMS.

How data were adapted and modified for the NZ dTIMS PMS project.

Presentation to the Department of Highways on road data collection methodologies.

Presentation giving overview of different technologies for collecting PMS data.

Presentation giving different options for how to institutionalize PMS data collection.

3rd International PMS Conference. How the ROMDAS Transverse Profile Logger was tested to confirm its measurements

IRF Conference. How one collects key data for feasibility studies

Describes the type of data collection that are required for undertaking feasibility studies. Accompanies IRF conference paper by the same name.

ARRB Journal. Implications of sampling on rut depth calculations

TRB Conference. The calibration of response-type roughness meters

Guide for the 4States Pavement Management Project on how the ARAN data were processed

Presentation on calibrating roughness meters. Accompanies TRB paper by the same name.

ARRB Conference. The influence of visible axle detectors on speeds

Arrb Conference. The implications of speed measurement errors in speed surveys

Comparison of calibrations between three roughness measurement vehicles in New Zealand

Paper on differences in roughness measurements between two different roughness vehicles