共找到 191 条与 港口通信与导航 相关的标准,共 13 页
The messaging between central control entities and Ramp Meter Control (RMC) units is accomplished using the NTCIP Application Layer services to convey requests to access or modify values of RMC unit object definitions resident in the devices via an NTCI
National Transportation Communications for ITS Protocol - Object Definitions for Ramp Meter Control (RMC) Units v01.17; A Joint Standard of AASHTO, ITE, and NEMA
The context of the NTCIP is one part of the Intelligent Transportation Systems (ITS) standardization activities covering base standards, profiles, and registration mechanisms.
National Transportation Communications for ITS Protocol Object Definitions for Closed Circuit Television (CCTV) Camera Control v01.08; A Joint Standard of AASHTO, ITE, and NEMA
Standard Practice for Determining Maximum Rut Depth in Asphalt Pavements
Standard Practice for Determining Maximum Rut Depth in Asphalt Pavements
This document provides a guideline for establishing evaluation and qualification procedures for personnel engaged in sampling and testing of soils, aggregates, hot-mix asphalt, and portland cement concrete in accordance with AASHTO test methods. The gu
Standard Recommended Practice for Technician Training and Qualification Programs
Part I Specifications Index Twentieth Edition
Part I Specifications Index Twentieth Edition
This method covers the approximate determination of clay lumps and friable particles in natural aggregates.
Standard Method of Test for Clay Lumps and Friable Particles in Aggregate
This specification covers single-cell precast reinforced concrete box sections intended to be used for the construction of culverts and for the conveyance of storm water, industrial wastes, and sewage.
Standard Specification for Precast Reinforced Concrete Box Sections for Culverts, Storm Drains, and Sewers [Metric]
This method of test covers the determination of the air content of freshly mixed concrete by displacing the air with alcohol and observing the change in level of the liquid in a tube. The apparatus is light and small, and the test procedure requires onl
Standard Method of Test for Air Content of Freshly Mixed Concrete by the Chace Indicator
1.1. This method covers the recovery, by the Abson Method, of asphalt from a previously conducted extraction with reagent-grade trichlorethylene or reagent-grade methylene chloride (Note 1). The asphalt is recovered with properties substantially the sam
Standard Method of Test for Recovery of Asphalt from Solution by Abson Method
it is important that managers and supervisors at all levels foster a culture of innovation within the organization. The organization, not just individuals, should be receptive to change by evaluating and perhaps implementing new technologies and methods.
Guide for Snow and Ice Control
This test method covers the float test for bituminous materials.
Standard Method of Test for Float Test for Bituminous Materials
This specification covers an elastomeric-type one component, hot-applied concrete joint sealant, resistant to weathering, for use in sealing joints and cracks in Portland cement concrete highway and airfield pavements.
Standard Specification for Joint Sealants, Hot-Poured, Elastomeric-Type, for Portland Cement Concrete Pavements
This method covers the determination of the cracking tendency of restrained concrete specimens. The procedure determines the effects of variations in the properties of concrete as related to the time-to-cracking of concrete when restrained. The procedur
Estimating the Cracking Tendency of Concrete
This test method covers the determination of the California Bearing Ratio (CBR) of pavement subgrade, subbase, and base/course materials from laboratory compacted specimens. The test method is primarily intended for but not limited to, evaluating the s
Standard Method of Test for the California Bearing Ratio
Interim revisions have been made to the Guide Specifications for Design and Construction of Segmenta/ Concrete Bridges, Second Edition (1 999). This packet contains the revised pages. They have been designed to replace the corresponding pages in the book
Guide Specifications for Design and Construction of Segmental Concrete Bridges Second Edition; Interim 2003
1.1. This test method covers determination of the fineness of portland cement as represented by a calculated measure of specific surface, expressed as square centimeters of total surface area per gram, or square meters of total surface area per kilogram
Standard Method of Test for Fineness of Portland Cement by the Turbidimeter
1.1. This method covers the procedure to be followed in testing aggregates to determine their resistance to disintegration by saturated solutions of sodium sulfate or magnesium sulfate. This is accomplished by repeated immersion in saturated solutions o
Standard Method of Test for Soundness of Aggregate by Use of Sodium Sulfate or Magnesium Sulfate
This specification covers bituminous preformed expansion joint filler for use in concrete construction.
Preformed Expansion Joint Filler for Concrete (Bituminous Type)
The purpose of this chapter i s to familiarize the inspector with the shotcrete process, the basic elements and types of shotcrete, its general applications, and construction concerns. Specific definitions are provided in the Glossary of Terms at the e
Task Force 37 Report; Inspectors?Guide for Shotcrete Repair of Bridges
Standard Specification for Preformed Polychloroprene Elastomeric Joint Seals for Bridges
Standard Specification for Preformed Polychloroprene Elastomeric Joint Seals for Bridges
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