Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Condition Data in Road Maintenance Management

Infrastructure productivity can be improved by cost-effective condition data collection and analysis

MSc (CE) Antti Ruotoistenmäki is presenting his doctoral dissertation “Condition Data in Road Maintenance Management” for public examination on Friday, 16 November at 2 pm at the HSE Economicum lecture hall (Arkadiankatu 7). The dissertation belongs to the Quantitative Methods of Economics and Management Science. His opponent is Professor Andrus Aavik of Tallinn University of Technology and the custos (chairman) is Professor Tomi Seppälä of HSE.

The total asset value of Finnish infrastructure is € 120 billion, of which the value of public road network administered by the Finnish Road Administration is some € 15 billion. Its annual maintenance and rehabilitation budget is approximately € 200 million. The condition of the road network, a key input to the management process, affects the annual road user costs of some € 10 billion. It is also used for evaluating maintenance benefits.

In his dissertation, Ruotoistenmäki is focusing to the information collected from paved road network of its surface profile (serviceability), cracking (automated image capturing and processing) and deflections measured using the falling weight deflectometer. The latter describe the road structural condition. Ruotoistenmäki uses several statistical methods, partly so as to choose the most appropriate method for accomplishing each task, and partly so as to create different views on the subject, which regardless of its economical importance has been the subject of surprisingly little statistical research.

The owners of road and street networks, as well as those collecting and analysing condition data, may apply the results of this study in their operations. Especially in the long-term maintenance contract the responsibility of meeting the functional requirements (condition) belongs to the contractor who may benefit from the results of this study. Focusing on maintenance of paved roads, the results of this study can be generalised to infrastructure asset management.

Ruotoistenmäki shows that the normality of the distribution of condition indicators, desirable in their statistical analysis, can often be achieved using logarithmic transformation. This enables the comparison of relative accuracies from various measurements with different scales. Using the route optimisation method developed in this study, the measurement budget can be allocated cost-effectively so that only those sections are measured where the benefits of improved accuracy in maintenance decision-making are the greatest. The current measurement policy is to measure high-trafficked roads every year, but in one direction only. The measurement budget could be reallocated so that all lanes are measured every other year.

Antti Ruotoistenmäki works as a leading consultant in the Consulting services unit of Destia in Helsinki since February 2007. He received his MSc (CE) from Helsinki University of Technology in 1994, and has previously worked as a researcher at the Technical Research Centre of Finland and Helsinki School of Economics, and as a consultant in Inframan Ltd. and Pöyry Infra Oy. His professional tasks are related with road maintenance management and condition measurements.

Terhi Ollikainen | alfa
Further information:

More articles from Transportation and Logistics:

nachricht Bremen University students reach the final at robotics competition with parcel delivery robot
19.10.2016 | BIBA - Bremer Institut für Produktion und Logistik

nachricht Discovering electric mobility in a playful way
18.08.2016 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO

All articles from Transportation and Logistics >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

Im Focus: New Products - Highlights of COMPAMED 2016

COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.

In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...

Im Focus: Ultra-thin ferroelectric material for next-generation electronics

'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.

Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Resolving the mystery of preeclampsia

21.10.2016 | Health and Medicine

Stanford researchers create new special-purpose computer that may someday save us billions

21.10.2016 | Information Technology

From ancient fossils to future cars

21.10.2016 | Materials Sciences

More VideoLinks >>>