MTU CE 5403 - PAVEMENT CONDITION SURVEYS (39 pages)

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PAVEMENT CONDITION SURVEYS



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PAVEMENT CONDITION SURVEYS

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Lecture Notes


Pages:
39
School:
Michigan Tech
Course:
Ce 5403 - Pavement Management Systems

Unformatted text preview:

Lecture 4 PAVEMENT CONDITION SURVEYS Instructional Objectives Need for condition surveys Collection methodologies Four basic types of condition surveys Different procedures and equipment available Need for Condition Surveys Evaluate current condition of pavement Determine rates of deterioration Project future conditions Determine maintenance rehabilitation needs Determine costs of repairs Prepare plans for repairs Types of Surveys Distress Surveys Structural Capacity Roughness Ride Quality Skid Resistance Surface Friction Distress Surveys Type of distress Severity Extent of distress present on the pavement Distress Surveys Types Paser Paver SHRP Asphalt Institute Texas Transportation Institute Paser Asphalt Concrete Gravel Roads Paser Distress Asphalt Uses visual inspection techniques Surface defects Surface deformation Cracks Patches and potholes Paser Distress Concrete Uses Visual inspection techniques Surface defects Joints Pavement cracks Pavement deformation LTPP Distress Asphalt Concrete LTPP Distress Asphalt Cracking Patching and potholes Surface deformations Surface defects Misc distress LTPP Distress Concrete Cracking Joint deficiencies Surface defects Misc distresses Paver Distress Asphalt Concrete Paver Distress Asphalt Alligator cracking Block crack Distortions Longitudinal and transverse cracking Patching and utility cuts Rutting Paver Distress Concrete Blow ups and Buckling Corner break D cracking Linear cracking Polished aggregate Pumping Ride Quality IRI International Roughness Index IRI is calculated from longitudinal profile measured with a road profiler in both wheelpaths The average IRI of the two wheelpaths is reported as the roughness of the pavement section ROUGHNESS SURVEY Survey the outside lane For undivided highways survey one direction For divided highways survey the outside lane in both directions For each survey cycle use the same direction s of travel and survey lane s IRI CALCULATION International Roughness Index IRI The IRI is



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