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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.




2021 - USA - Total Cost of Vehicle Ownership
 6.94 MB

Detailed analysis of the total cost of ownership (TCO) consisting of all costs related to both purchasing and operating the vehicle. This TCO analysis builds on previous work to provide a comprehensive perspective of all relevant vehicle costs of ownership. In this report, we present what we believe to be the most comprehensive explicit financial analysis of the costs that will be incurred by a vehicle owner. This study considers vehicle cost and depreciation, financing, fuel costs, insurance costs, maintenance and repair costs, taxes and fees, and other operational costs to formulate a holistic total cost of ownership and operation of multiple different vehicles. For each of these cost parameters that together constitute a comprehensive TCO, extensive literature review and data analysis were performed to find representative values in order to build a holistic TCO for vehicles of all size classes. The light- and heavy-duty vehicles selected for analysis in this report are representative of those that are on the road today and expected to be available in the future. Table ES-1 summarizes the main parameters in this study, including the cost components which comprise TCO, the sizes and vocations of vehicles which are analyzed, the powertrains of these vehicles, and the model year for analysis of both current and future vehicles.

1997 - Modelling Vehicle Utilisation and Service Life
 23.93 KB

Memo describing modelling issues and how addressed in HDM-4

1996 - Modelling Capital Costs in HDM-4
 137.38 KB

How capital costs were to be modelled in HDM-4

1996 - Hine - Briefing Paper on Utilization and Service Life
 421.71 KB

Paper by John Hine on the proposed modelling of utilization and service life.

1996 - Capital Cost Modelling
 29.88 KB

Memo on issues with capital cost modelling in HDM-4

1996 - Bennett - Memo on Modelling Capital Costs in HDM-4
 739.23 KB

Memo on capital costs modelling.

Comprehensive review of procedures and preliminary recommendations for HDM-4

1995 - HDM-4 - Optimal Life Software Source
 71.82 KB

FORTRAN code for predicting Optimal Life deterioration.

1995 - HDM-4 - Optimal Life Software Source
 255.67 KB

FORTRAN code for predicting Optimal Life deterioration.

1995 - Daniels - Memo on Utilization Modelling
 264.79 KB

Memo from Clive Daniels on the proposed utilization modelling in HDM-4.

National Roads Board Road Research Unit Bulletin. Detailed analysis on the modelling of vehicle depreciation costs.


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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