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o' CTA &GO Countywide Pavement Management Plan Guidelines <br />Local Tax Dollars at Work <br />The distress definitions, severity levels, and measurement methods are based on criteria <br />described in Pavement Management for Airports, Roads and Parking Lots'. This reference has <br />been formalized as ASTM Standard D64332. ASTM's copyright does not allow for electronic <br />distribution or copying of this standard. However, a link to purchase the standard is included in <br />the footnote. OCTA's guidelines follow ASTM D6433, with a few minor exceptions. <br />In addition, field manuals are available from the military Tri-Services (US Army Corps of <br />Engineers, Naval Facilities Engineering Command, and Air Force Civil Engineer Center)3,4. The <br />field manuals include photographs of distress types and detailed descriptions and definitions, and <br />are intended for the field inspector. All personnel involved with inspection or performing condition <br />surveys must have read and understood these manuals. <br />CONCRETE SURFACED <br />R4A�5 8� PARKING LOTS <br />ASPHALT SURFACED <br />PAVEF2 "DISTRESS IOEN71FICATION <br />ROADS & PARKING LOTS <br />MAN UALL <br />_ <br />_ PAVER" DISTRESS IDENTIFICATION <br />MANVAt <br />DEVELOPED BY: <br />CORPS <br />1 VS AR <br />OF ENGINEERS <br />1 1 1 Efi'8G-CER L <br />DEVELOPED BY.- <br />— <br />. 1 1 VS ARMY CORPS <br />OF ENGINEERS <br />— i � � f 1 FROC-CFAL <br />SPONSORED 8v <br />SPONSORED 8!'.• <br />_ <br />T' <br />•.. <br />—1 <br />Note that both ASTM D6433 and these field manuals contain 20 distresses and 19 distresses for <br />AC and PCC pavements, respectively. These distresses are now required for data collection. <br />Shahin, M.Y. Pavement Management for Airports, Roads and Parking Lots, Chapman & Hall, 1994. <br />2 ASTM D6433 — Standard Practice for Roads and Parking Lots Pavement Condition Index Surveys. A copy may be <br />purchased at https://www.astm.org/d6433-23.html. <br />3 Paver Distress Identification Manual: Asphalt -Surfaced Roads and Parking Lots, U.S. Army Corps of Engineers, <br />Construction Engineering Research Laboratories, June 2009. To purchase, go to <br />https://transportation.erdc.dren.mil/paver/index.htm. <br />4 Paver Concrete Distress Identification Manual: Concrete Surfaced Roads and Parking Lots, U.S. Army Corps of <br />Engineers, Construction Engineering Research Laboratories, June 2009. To purchase go to <br />https://transr)ortation.erdc.dren.mil/r)aver/index.htm. <br />Effective March 2024 2-2 <br />