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Showing 34801 - 34820 of 36747 results
  • Potential for Betterment District Financing and Joint Development Applications to Surface Transit
    Potential for Betterment District Financing and Joint Development Applications to Surface Transit
    Shawcroft, Robert G. ;
    Horwood, Edgar M.
    1977-07-01 | PDF
    The report proposes a general methodology for evaluating land use and investment activity with respect to land in the vicinity of surface transit facilities. The three major objectives were: (1) to determine if there are incremental benefits accruing to land near bus, trolley, and by inference light rail facilities; (2) to examine equity issues in ...
  • Design of ZeroMaintenance Plain Jointed Concrete Pavement Vol II Design Manual
    Design of Zero-Maintenance Plain Jointed Concrete Pavement, Vol. II - Design Manual
    Darter, Michael I. ;
    Barenberg, Ernest J.
    1977-06-08 | PDF
    This manual is an engineering guide for the design of heavily trafficked plain jointed concrete pavements to provide "zero-maintenance" performance over a selected design period. The term "zero-maintenance" refers only to structural maintenance such as patching, crack repair, slab replacement, grinding of faults, and overlay. Procedures are include ...
  • Design of ZeroMaintenance Plain Jointed Concrete Pavement Vol I Development of Design Procedures
    Design of Zero-Maintenance Plain Jointed Concrete Pavement, Vol. I - Development of Design Procedures
    Darter, Michael I.
    1977-06-08 | PDF
    Comprehensive procedures for the structural design of "zero-maintenance" plain jointed concrete pavements for heavily trafficked roadways are development. The term "zero-maintenance" refers to the structural adequacy of the pavement lanes and shoulder. Thus, a "zero-maintenance" pavement would not require maintenance such as patching, joint repair, ...
  • Evaluation of vacuum pycnometer final report
    Evaluation of vacuum pycnometer : final report.
    Carey, Donald E.
    1977-06-01 | PDF
    This report is concerned with the evaluation of the Yale vacuum pycnometer to determine the feasibility of its use for the rapid determination of maximum specific gravity and asphalt content of bituminous paving mixtures. Asphalt contents of plant-mixed samples from four Louisiana mix types were calculated from the pycnometer determined maximum spe ...
  • Chemical Grouts for Soils Vol I Available Materials
    Chemical Grouts for Soils: Vol. I Available Materials
    Tallard, G. R. ;
    Caron, C.
    1977-06-01 | PDF
    The essence of this research is the search for more economical grouts not directly dependent on petroleum. The study has required an extensive investigation of 75 years of knowledge on chemical grouts in order to clear out the present diaspora of products. From this a general classification of chemical grouts has been proposed based on the nature o ...
  • Chemical Grouts for Soils Vol II Engineering Evaluation of Available Materials
    Chemical Grouts for Soils: Vol. II Engineering Evaluation of Available Materials
    Tallard, G. R. ;
    Caron, C.
    1977-06-01 | PDF
    The essence of this research is the search for more economical grouts not directly dependent on petroleum. The study has required an extensive investigation of 75 years of knowledge on chemical grouts in order to clear out the present diaspora of products. From this, a general classification of chemical grouts has been proposed, based on the nature ...
  • Assessment of National Small Rural Watersheds Program Volume 1 Technical Report
    Assessment of National Small Rural Watersheds Program: Volume 1, Technical Report
    Fiering, Myron B. ;
    Sharpin, R. E.
    1977-06-01 | PDF
    A State-by-State assessment is made of the current status of the National Small Rural Watersheds Program with regard to adequacy of Data collection and analysis. Methodology is recommended for flood frequency estimation to replace currently used biased approaches. Concepts of risk aversion are discussed, and decision criteria based on economic cons ...
  • Skid resistance study final report
    Skid resistance study : final report.
    Walters, William C.
    1977-06-01 | PDF
    This is a report of a research project involving, in Phase I, the skid resistance of asphaltic concrete overlays. Phase II is a report of a pilot study set up in order to determine the best way to perform a skid resistance inventory of the highway network in Louisiana.Phase I was conducted from August 1969 to August 1974 and included the skid testi ...
  • Identification of Market Segments An Analysis of Transit Needs and Service Requirements
    Identification of Market Segments: An Analysis of Transit Needs and Service Requirements
    Hatfield, Nancy J. ;
    Guseman, Patricia Knight
    1977-06-01 | PDF
    Marketing in the area of public and mass transportation involves a consumer orientation whereby systems attempt to best serve the needs of potential transit markets. By structuring service developments and promotional activities to satisfy the service requirements of targeted population segments, systems maximize the effectiveness of their efforts ...
  • Critical Factors Influencing the Demand for Transit
    Critical Factors Influencing the Demand for Transit
    Guseman, Patricia Knight ;
    Hatfield, Nancy J.
    1977-06-01 | PDF
    The purposes of this report are: (1) to identify the direct, as well as latent, demand for public and mass transportation services, and (2) to assess the factors which are critical to developing expanded transit usage. Individual and behavioral characteristics explaining transit demand are assayed, as well as transit system and population character ...
  • Assessment of National Small Rural Watersheds Program Volume 2 Appendixes
    Assessment of National Small Rural Watersheds Program: Volume 2, Appendixes
    Fiering, Myron B. ;
    Sharpin, R. E.
    1977-06-01 | PDF
    A State-by-State assessment is made of the current status of the National Small Rural Watersheds Program with regard to adequacy of data collection and analysis. Methodology is recommended for flood frequency estimation to replace currently used biased approaches. Concepts of risk aversion are discussed, and decision criteria based on economic cons ...
  • Analyses of the National Energy Plan The Effects on Transportation
    Analyses of the National Energy Plan: The Effects on Transportation
    Burke, Dock ;
    McFarland, W. F.
    1977-05-01 | PDF
    This monograph focuses upon the transportation aspects of the recently proposed National Energy Plan. It contains a point- by - point analysis of elements, specifically mentioned in the National Energy Plan, that relate directly to transportation. When appropriate, the analyses have generated some forecasts of the expected effects upon Texas and/or ...
  • Evaluation of rubberasphalt chip seal in Oregon interim report
    Evaluation of rubber-asphalt chip seal in Oregon : interim report.
    Oregon. Dept. of Transportation. Highway Division
    1977-05-01 | PDF
    The Oregon State Highway Division, in cooperation with the Federal Highway Administration, participated in a demonstration project on the evaluation of rubber-asphalt chip seals. The trial projects were placed in Maintenance District 11, in the vicinity of Klamath Falls. The object of project was to give this type seal coat a working test. The proc ...
  • Evaluation of joint sealant materials final report
    Evaluation of joint sealant materials : final report.
    Kinchen, Richard W. ;
    Temple, William H.
    1977-05-01 | PDF
    In May, 1968, the Department's Research and Development Section initiated a project to evaluate joint sealants being marketed for use on roads and bridges. In the study, representatives of 31 companies installed 40 products primarily on one road and one bridge for evaluation. Thus, at first the project was primarily materials oriented; however, dur ...
  • Improved End Treatment for Metal Beam Guardrail
    Improved End Treatment for Metal Beam Guardrail
    Buth, C. E. ;
    Hirsch, T. J.
    1977-05-01 | PDF
    Since Texas and many other states have literally thousands of turned down end guardrails installed on their highways, Texas Transportation Institute and Texas highway engineers have been seeking a relatively simple method of modifying the turned down end treatment which would eliminate or greatly minimize the probability of a vehicle ramping and ro ...
  • Composition of Small Mammal Populations on Highway RightsofWay in East Texas
    Composition of Small Mammal Populations on Highway Rights-of-Way in East Texas
    Schmidly, David J. ;
    Wilkins, Kenneth T.
    1977-05-01 | PDF
    Many species of wildlife occur along roads. Most rodents spend their entire lives within the rights-of-way (ROWs); larger species are transients which feed within ROWs. Mowing affects abundance of rodents. Species preferring denser cover were more plentiful in un-mowed ROWs than in mowed-ROWs. Species preferring sparse cover were more abundant in m ...
  • Identification of Candidate Zero Maintenance Paving Materials Vol 2
    Identification of Candidate Zero Maintenance Paving Materials: Vol. 2
    Hoff, Gerald C. ;
    Godwin, L.N.
    1977-05-01 | PDF
    A broad spectrum of materials which may have potential for improving the characteristics of pavements with regard to reducing future maintenance were reviewed with those materials or materials systems possessing the most advantages being considered as candidates for a zero maintenance paving system. These included Gussasphalt, asbestos asphalts, su ...
  • Identification of Candidate Zero Maintenance Paving Materials Vol 1
    Identification of Candidate Zero Maintenance Paving Materials: Vol. 1
    Hoff, Gerald C. ;
    Godwin, L.N.
    1977-05-01 | PDF
    A broad spectrum of materials which may have potential for improving the characteristics of pavements with regard to reducing future maintenance were reviewed with those materials or materials systems possessing the most advantages being considered as candidates for a zero maintenance paving system. These included Gussasphalt, asbestos asphalts, su ...
  • Traffic Volume Trends May 1977
    Traffic Volume Trends: May 1977
    United States. Department of Transportation. Federal Highway Administration
    1977-05-01 | PDF
    Presents traffic volume statistics for May 1977.
  • Field evaluation of viscosity and penetrationgraded asphalt cements asphalt cement consistency study final report
    Field evaluation of viscosity and penetration-graded asphalt cements : asphalt cement consistency study : final report.
    Shah, S. C.
    1977-04-01 | PDF
    The major objectives of this study were three-fold and can be listed as follows in their order of importance:(1) To seek data relative to the changes that occur with time in the physical characteristics of penetration and viscosity graded-asphalt cements.(2) To determine the influence of the above characteristics on the durability (performance) of ...
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