Data Requirements For Long Term Monitoring Of Pavements As A Basis For Development Of Improved Damage Functions PDF Download

"Long-term monitoring efforts have been carried on for a number of years at state and national level and have been generally accepted. However, the shape that it takes in the future will depend very largely upon the decisions that are made in this Workshop concerning the following very basic issues: (1) What questions related to the financing management of the nation's highways need to be answered and can only be answered with a continuing data monitoring effort? (2) What data need to be collected and evaluated in order to answer these questions? (3) What is the best way to collect and evaluate these data in order to answer a number of basic and important questions? The deterioration of the highway infrastructure and the consequent need to use tax dollars wisely to maintain, rehabilitate, and reconstruct the highway system have presented the highway community, the state and national governments with basic policy and technical questions to which, at present, there are only tentative or intuitive answers. Rehabilitated or reconstructed pavements are more difficult to design and construct properly than are new pavements. The composition of the vehicle fleet and vehicle loading distributions, the construction of tires, and the magnitude and distribution of tire pressures are changing rapidly and are expected to have a significant impact on the rate of highway deterioration. There is a growing recognition of the importance of climatic influences on the rate of pavement deterioration. All of these changes have created a dynamic situation for policy-makers who are attempting to determine cost responsibilities for different highway users and to define equitable means of apportioning the funds that are available for preserving our nation's highway network"--Technical report documentation p.