AbstractThese test methods define two categories of acceptance tests for evaluating the performance of highway traffic monitoring devices (TMD) according to the functions it performs, the data it provides, the required accuracy of the data, and the conditions under which the device operates. The tests are performed in a field environment and result in an accept or reject decision for the TMD under analysis. The first test is the Type-approval Test intended for TMDs that have never been type approved, and verifies the functionality of all features of the TMD by providing information for evaluating the accuracy of the data item outputs when monitoring vehicle flows consisting of a mix of all anticipated vehicle classes under a specified range of operating conditions. The second, the On-site Verification Test, is applicable to production versions of TMDs that have previously passed a Type-approval Test, but are now being installed at a new location or have been repaired. Lighting and weather factors that may be included as part of TMD testing are (1) dawn ambient lighting, (2) dusk ambient lighting, (3) nighttime ambient lighting, (4) sun glint, (5) rain characterized by rain rate, (6) fog or dust characterized by human visual range, and (7) snow characterized by snow fall rate and snow flake size.1.1 Purpose—The two test methods contained in this standard define acceptance tests for evaluating the performance of a Traffic Monitoring Device (TMD) according to the functions it performs, the data it provides, the required accuracy of the data, and the conditions under which the device operates. Acceptance tests are recommended whenever a TMD is purchased, installed, or performance validation is desired. The tests are performed in a field environment and result in an accept or a reject decision for the TMD under test.1.2 Exceptions—Exceptions and options to the test methods may be included in any derivative test method presented by a user as part of the procurement process for TMDs. Sellers may offer exceptions and options in responding to an invitation to bid.1.3 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units,2 which are provided for information only and are not considered standard.1.4 The following safety procedures apply to Sections 6 and 7, which describe the details of the acceptance test methods. When a test site accessible by the public (for example, a street or highway) is used for the acceptance test of the TMD, obtain approval from the public authority having jurisdiction over the site for the traffic control procedures to be used during the test. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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5.1 Field, in-place repetitive static plate load tests are used for the evaluation and design of pavement structures. Repetitive static plate load tests are performed on soils and unbound base and subbase materials to determine strain modulus or a measure of the shear strength of pavement components.1.1 This test method covers the apparatus and procedure for making repetitive static plate load tests on subgrade soils and compacted pavement components, in either the compacted condition or the natural state, and is to provide data for use in the evaluation and design of rigid and flexible-type airport and highway pavements.1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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5.1 Field, in-place nonrepetitive static plate load tests are used for the evaluation and design of pavement structures. Nonrepetitive static plate load tests are performed on soils and unbound base and subbase materials to determine the modulus of subgrade reaction or a measure of the shear strength of pavement components.1.1 This test method covers the apparatus and procedure for making nonrepetitive static plate load tests on subgrade soils and compacted pavement components, in either the compacted condition or the natural state, and is to provide data for use in the evaluation and design of rigid and flexible-type airport and highway pavements.1.2 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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1.1 This practice describes highway-traffic monitoring, which is the activity of collecting, summarizing, and reporting traffic volume, vehicle classification, and vehicle weight data. This practice is foundational and is not intended to be all-inclusive. Users of this practice are allowed, indeed encouraged, to exceed the practice. 1.2 Traffic monitoring results in traffic-volume, classification, and weight-summary statistics which are used in highway geometric and pavement design, alternative highway route selection, roadway demand and service assessment, and accident-exposure estimation. 1.3 Traffic-monitoring practices are based on the principle of truth-in-data. This principle involves providing the supplementary information required for appropriate use of traffic data and summary statistics. 1.4 To measure traffic for summary-statistic calculation, traffic-monitoring practices are also based on the principle of unedited base-data integrity. Missing or inaccurate unedited base data shall not be completed, filled-in, or replaced for any type of traffic measurement. 1.5 A limitation of this practice is traffic-data summarization. Traffic-data summarization procedures are hypotheses, particularly in the use of adjustment factors. These hypotheses shall be consistently calculated, but may also be expected to be challenged and to change across time. These changes will be important in improving the precision of traffic-summary statistics. 1.6 The inherent limitation of traffic-monitoring practice results in strict adherence to the principle of unedited base-data retention. Only with adequate historical unedited base data can alternative hypotheses be tested, the impact of the alternative hypotheses assessed, and standard practice refined. 1.7 The values stated in inch-pound units are to be regarded as standard. 1.8 The following safety hazards caveat applies only to the traffic data collection portion, Section 6, of this practice. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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4.1 This test method establishes a standard procedure of comparative testing, for tire durability and treadwear, for the use of approving tires under the Administrator's Cooperative Approved Tire List (CATL) (2).1.1 This test method covers comparative tire durability and treadwear. This test method covers commercially available, over the highway pneumatic tires, new and retreaded, both tube type and tubeless, for use on conventional passenger cars, station wagons, pursuit and emergency high speed and pursuit passenger vehicles, light trucks, medium to heavy truck, trailers, buses, and similar vehicles normally operated on public roads and highways. This test method also covers commercially available, special application light truck tires for operation on non-improved road surfaces.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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4.1 This test method establishes a standard procedure of comparative testing, for tire strength and dimensional characteristics, for use under the Administrator's Cooperative Approved Tire List (CATL) (2).1.1 This test method covers measurements for comparative tire strength and dimensional characteristics. This test method covers new and retreaded pneumatic tires, both tube and tubeless types, and flaps when applicable, for mounting on construction, earthmoving, mining and logging equipment, graders, mobile cranes, and similar vehicles operated at low speeds off the road.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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