00201907

Component

https://onlinepubs.trb.or...bproceedings/13/13-007.pdf

IN ESTIMATING THE ECONOMY OF CONTEMPLATED ROAD IMPROVEMENTS, THE QUESTION, "HOW MUCH CAN WE AFFORD TO INVEST NOW TO SAVE A DETERMINED AMOUNT OF ANNUAL EXPENSE?" CAN BE ANSWERED BY COMPARING THE ADDITIONAL INVESTMENT WITH THE SAVING IN COST WHICH IT EFFECTS. THIS METHOD OF COMPUTING ECONOMY IS ILLUSTRATED IN DETAIL BY A PROJECT FOR IMPROVING A GRAVEL ROAD BY SURFACING IT WITH CONCRETE. FOR THE COST DATA ASSUMED IT IS SHOWN THAT THE IMPROVEMENT IS JUSTIFIED FOR AN ANNUAL TRAFFIC OF 200,000 VEHICLES OR MORE, BUT THAT FOR 100,000 VEHICLES IT DOES NOT APPEAR TO BE ECONOMICAL. THE COMPUTATION SHOWS THAT THE SAVING IN ANNUAL ROAD COST IS RELATIVELY SMALL IN COMPARISON WITH THE SAVING IN VEHICLE OPERATING COST WHEN THE ANNUAL TRAFFIC IS LARGE. INDEED AN APPROXIMATE ECONOMY DETERMINATION CAN BE MADE BY CONSIDERING THE VEHICLE COST ONLY. /AUTHOR/

Vol 13, ParT I, PP 111-115, 1 TAB. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

01490412

1934

Highway Research Board Proceedings

Digital/other

Economic analysis; Economics; Highways; Improvements; Investments; Motor vehicles; Operating costs; Traffic flow; Travel patterns

Traffic patterns

Economics; Highways; Society

TRIS, TRB

Sep 6 1971 12:00AM

• ALCOHOL AND MOTOR VEHICLE DRIVERS
• AN EXPERIMENTAL ROAD OF CEMENT BOUND MACADAM
• ANALYSIS OF ROAD COST ON THE STATE HIGHWAYS OF WORCESTER COUNTY, MASSACHUSETTS
• APPLICATION OF EQUATION FOR ANNUAL ROAD COSTS
• COEFFICIENT OF FRICTION BETWEEN TIRES AND ROAD SURFACES
• CRACK CONTROL IN CONCRETE BASES FOR SHEET ASPHALT PAVEMENT
• DETERMINATION OF TIME SAVED BY VEHICLES USING THE NEW JERSEY HIGH LEVEL VIADUCT
• FURTHER TRACTIVE RESISTANCE TESTS WITH A GAS ELECTRIC DRIVE AUTOMOBILE
• GRAVEL TYPE STABILIZED SURFACES FOR SECONDARY ROADS
• HIGHWAY LIGHTING RESEARCH
• INTANGIBLE ECONOMICS OF HIGHWAY TRANSPORTATION
• LIQUID BITUMINOUS MATERIALS FOR PLANT MIXED SURFACES
• MAKING AND USING THE TRAFFIC CENSUS
• MOTOR VEHICLE ACCIDENTS AS REFLECTED BY PSYCHOLOGICAL TESTS AND REACTION METER
• NOTES ON TRAFFIC SPEEDS
• PROGRESS REPORT ON THE REACTION OF CALCIUM CHLORIDE ON PORTLAND CEMENT
• REPORT OF COMMITTEE ON MAINTENANCE - TREATMENT OF ICY PAVEMENTS
• REPORT OF JOINT COMMITTEE ON ROADSIDE DEVELOPMENT
• REPORT OF PROJECT COMMITTEE ON FILLERS AND CUSHION COURSES FOR BRICK AND BLOCK PAVEMENTS
• REPORT OF SUBCOMMITTEE ON MAINTENANCE OF CONCRETE PAVEMENT CRACKS AND EXPANSION JOINTS
• RULES OF THE ROAD IN THEORY AND PRACTICE
• SKIDDING CHARACTERISTICS OF ROAD SURFACES
• THE EFFECT OF CONTROL METHODS ON TRAFFIC FLOW-TRAFFIC MOVEMENTS AT SEVENTEENTH STREET AND CONSTITUTION AVENUE IN WASHINGTON, D.C.
• THE ENGINEERING VALUATION OF HIGHWAY SYSTEMS - A PROBLEM IN PUBLIC UTILITIES VALUATION
• THE PHOTOGRAPHIC METHOD OF STUDYING TRAFFIC BEHAVIOR
• THE TAXATION OF MOTOR VEHICLES IN 1932
• WEATHERING TESTS ON CONCRETE