HDM-III Development

Various working papers and other materials from the development of HDM-III.

Report describing the HDM-III vehicle operating costs model developed by the World Bank.

1985 - USA - Volume II of HCM III Study
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Correspondence from Edward C. Sullivan (Lecturer, Berkeley) to C. Harral (World Bank) regarding draft of HDM III study - tire wear model.
Paper by Zaniewski and Butler. Study on vehicle operating costs related to road roughness.

Technical paper on the adaptability of the HDM-III speed and fuel models to India.

Report on the results of comparison speeds predicted by the model against observed speeds derived from detailed tachograph records of interstate buses in Brazil.
Report by T. Watanatada etc relating to the comparison of the aggregate relationships for predictiing fuel consumption against fuel consumption records in the road user cost survey.
Report on Bolivian data entered into World Bank model.
Use of linear interpolation approach in order to determine the value of FRATIO to be used when a truck is partially loaded.
Tire Consumption Methodology Used In India Road User Cost Study
Standardization of the Relationships For Predicting Vehicle Parts Consumption and Maintenance Labor Requirements For The India and Brazil Studies
Report by T. Watanatada relating to tire wear equations for buses and trucks (taken from the results of the analysis by Rezende-Lima, 1983).
Report by T. Watanatada relating to vehicle utilization speed and the relationship between vehicle depreciation and interest costs to vehicle utilization.
Report by T. Watanatada relating to vehicle utilization speed. Describes the forumulation of a mathematical model which relates to the vehicle utilization speed.
A summary of the India vehicle operating cost relationships selected for use in HDM III.

1983 - WB - India Standardizing Parts Consumption
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Correspondence from T. Watanatada to L.R. Kadiyali regarding RUCS Final Report. Specifically (1) The use of physical quantities in modelling parts consumption and mechanic labor costs; and (2) The modelling of tire wear and parts consumption using mechanistic principles.
Expressing Parts Consumption and Concomitant Mechanic Labor Requirement In Physical Quantities: New Vehicle Price Method and Standard Parts Basket Method

1983 - WB - Dhareshwar Mechanistic Parts Modelling (2)
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Bus and truck maintenance parts consumption: preliminary report on the estimation of the aggregate relationship based on mechanistic principles.

1983 - WB - Dhareshwar Mechanistic Parts Modelling (1)
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Bus and truck maintenance parts consumption: preliminary report on the estimation of the aggregate relationship based on mechanistic principles.
Determination Of New Vehicle Prices and Maintenance Labor Costs for Brazil and India Studies
Determination Of Values Of Maximum Used Driving Horsepower And Maximum Used Braking Horsepower For Experimental Vehicles And Local Adaptation

1983 - WB - Consumption of Lubricants
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Report on vehicle lubrication costs based on data from study in Bolivia in 1983.
Findings from a preliminary analysis of the manner in which the elevation profile of highway pavements affects vehicular resistance to motion.
Field study conducted by Wisconsin Department of Transportation that sought to define the relation between vehicle fuel consumption and pavement roughness.

Report descirbing models for predicting vehicle speed and fuel consumption.

1981 - Brazil GEIPOT Study - Volume 8: Highway Costs
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Report describing predicitng highway costs.

Predicting pavement deterioration and maintenance effects.

Predicting vehicle speeds.

1981 - Brazil GEIPOT Study - Volume 5: Road User Costs
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Road user cost models from the Brazil study.

1981 - Brazil GEIPOT Study - Volume 3: Instrumentation
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Instrumentation used in the GEIPOT study.

The Model for Simulating Traffic (MST) is one of the products of the Research on the Interrelationships Between Costs of Highway Construction, Maintenance and Utiliiation (PICR). The Model simulates traffic flow on two-lane highway sections of any vertical and horizontal alignment complexity. This makes it possible to evaluate the impact of transportation policies and strategies, such as construction of a third (climbing) lane, construction of a highway intersection, or the introduction of new transportation technologies. The MST also makes it possible to compute travel times, operating speeds, fuel consumption and other data that can be used by the transportation planner in analyzing the effects of transportation policies and strategies.

Memo describing work done to standardize parts consumption relationships.

Experimental Design of Paved Road Study (Annex to the Experimental Design of Paved Road Study). The Statistical Design of the Surface Road Experiment.
Paper on the benefits of using the slip energy approach relating to the management and use of low standard rural roads, particularly those with aggregate surfaces.
Report on the effect of road roughness on the behaviour of vehicles and drivers in terms of (i) driver acceleration; (ii) lateral tire forces;; and (iii) normal tire forces.
Report II: Midterm Report - Preliminary Results and Analysis relating to pavement performance and maintenance studies.

1977 - Brazil - GEIPOT Study Mid-Term Review
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1977 mid-term review report for the HDM-III Brazil study into the inter-relationship between traffic, road condition, and vehicle operating costs.

1977 - Brazil - GEIPOT Study Mid-Term Review
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1977 mid-term review report for the HDM-III Brazil study into the inter-relationship between traffic, road condition, and vehicle operating costs.

Report on the Vehicle Operating Cost Model developed to serve planning and design needs related to low standard roads in National Forests and other hinterland locations.
Inception Report: Research Concepts and Procedures relating to pavement performance and maintenance studies.

1976 - Brazil - GEIPOT Study Inception Report
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1976 inception report for the HDM-III Brazil study into the inter-relationship between traffic, road condition, and vehicle operating costs

A series of memos describing the experimental design of the Brazil pavement deterioration study which collected the data for the development of the HDM-III pavement deterioration models.