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Welcome to Chris Bennett's and Lis Pedersen's web site. If you are looking for information Chris' current work on affordable housing, please visit www.mygbhousing.info. The video below tells the background to Chris' project.


2024 - Sri Lanka - A Multi-Objective Optimization Approach for Low Volume Rural Road Maintenance Management Incorporating Socioeconomic Importance


2024 - Sri Lanka - A Multi-Objective Optimization Approach for Low Volume Rural Road Maintenance Management Incorporating Socioeconomic Importance

Rural roads are essential for local communities as they play a key role in providing access to the market, education, health, etc. However, most of these roads, especially in developing countries, are not maintained efficiently by the road agencies mainly due to financial, technical resource constraints, among many others. Established pavement condition monitoring systems require high technical resources, and are often costly and time-consuming. Therefore, most local road agencies are relying on subjective, ad hoc decision-making, which is led to making sub-optimal resource allocation for pavement maintenance. These roads also serve the various socio-economic purposes of the community, and this needs to be considered in prioritizing roads for maintenance, in addition to the traditional pavement performance metrics. This study proposes a methodology to incorporate socio-economic importance of rural roads that can be adopted in both short-term planning and long-term performance evaluation. Pavement condition performance is evaluated using smartphone-based roughness data, while socio-economic importance consists of connectivity, community importance, land-use pattern, and the traffic volume. The analysis scheme incorporates both single and bi-objective optimization approaches using genetic algorithm-based solution process under a pre-defined decision tree. Finally, use of the developed analysis scheme has been demonstrated using a rural road network as a case study.

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Created Date: 04-03-2024
Last Updated Date: 25-07-2024


Chris in the NCT Race 

Chris has an adventurous spirit which generally involves cycling, running, or just being out there having a good time. Read his 'Race Reports' below. This is a link to his SPOT GPS tracker. If you are interested in his 'geeky' sport technical blog it is at www.tri-duffer.com. He also has stories of his life as 'An Overtravelled Engineer Working for the World Bank' at World Bank Traveller.


Race Reports


Document Library


  • Chris' published papers and reports are here.
  • His Technical Library  has a range of reports 
  • Golden Bay community projects are here.
  • The history of the ROMDAS company is here.
  • The 'Road to Good Health' HIV/AIDs Toolkit is here.


Technical Library

Chris and Lis

Chris and Lis

We are Lis Pedersen and Chris Bennett. We’ve been married over 30 years and each found our way to New Zealand in the early 1980s from Denmark and Canada respectively. Golden Bay has been our happy place for almost 20 years and we are now based in Pohara just above the beach, with our two cats Coco and Max. 




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