- #Pavement design aashto method proposals manual
- #Pavement design aashto method proposals full
- #Pavement design aashto method proposals professional
In no case shall the design 18K EDLA be less than the following values: The design procedure is based on the number of 18,000 pound single axle equivalent load applications (18K EDLA) per traveled lane. The following elements are to be used in the design procedure:Ī.
Recommended structural sections, based on the design considerations, proposed typical sections, and sections of roadway which may require additional stabilization or treatment. Traffic analysis for the purpose of pavement design shall be as specified in Article 2.Į.
#Pavement design aashto method proposals full
Proposed average daily traffic volumes (ADT) for each road based on 100% of full development plus a 10% adjustment for construction traffic. The value of MR may be obtained from a HVEEM Stabilometer test ‘R" value by the following formulae:ĭ. The pavement design procedure is based upon the resilient modulus, MR, of the sub-grade soils. Each representative sample shall be classified according to the AASHTO Unified Soil Classification Table, and shall have an Atterberg Limits Test and sieve analysis performed.Ĭ. Logs shall include a soil profile for a minimum depth of four feet below the proposed sub-grade elevation.ī. Soil logs along the proposed roadway alignment at a maximum of 500 foot intervals. The pavement design report shall include the following minimum information:Ī.
#Pavement design aashto method proposals professional
The report shall be prepared by a professional engineer licensed to practice in the State of Colorado. In no case, however, shall the thickness of hot bituminous pavement for a road to be maintained by the County be less than three inches.Ī pavement design report shall be submitted prior to the approval of any roadway construction plans involving new pavement, overlay of existing pavement or widening of existing pavement. The required thickness of pavement shall be based upon the provisions of this Article 6. No special maintenance problems or difficulties due to the gravel surface are anticipated by the Public Works Department considering the location and proposed use of the road. The proposed road profile and other design details combined with the surrounding topography and other characteristics will not create the potential for erosion and loss of gravel due to storm run-off.Ĭ. The projected traffic volume 20 years in the future does not exceed 100 vehicles per day.ī. The sole exception to this policy is any road classified as a Local Minor Residential road, which may be constructed with a final gravel surface-subject to the approval of the Director of Public Works-provided:Ī. It is the policy of Pueblo County that the surface of all new roads constructed within a public right-of-way shall be hot bituminous pavement (asphalt) or Portland cement concrete pavement.
#Pavement design aashto method proposals manual
Minor modifications to the CDOT manual procedure and specific minimum values of constants or factors are specified herein. Mechanistic-Empirical Design Procedures 1.The procedure for the design of pavement structure sections shall be based upon the most recent edition of the Colorado Department of Transportation’s Roadway Design Manual and the AASHTO Guide for Design of Pavement Structures. Rehabilitation Methods other than Overlay Pavement Design Procedures for Rehabilitation of Existing Pavements 1. Pavement Design Procedures for New Construction or Reconstruction 1. Economic Evaluation of Alternative Pavement Design Strategies Design-Related Project Level Pavement Managementģ. Pavement Design and Management Principles 1. Part III provides alternative methods for pavement rehabilitation with or without the addition of an overlay, and Part IV provides a framework for future developments using mechanistic design procedures. Part II offers a detailed method for the design of new pavements or for reconstruction of existing pavements on the existing alignment with new or recycled materials. Part I includes background material to assist the user in the proper interpretation of the design procedures and to provide an understanding of the concepts used in the development of the Guide. Material on overlay design methodology and rehabilitation, including seven overlay procedures and associated options is included. This book provides approaches to pavement design including design and management principals, procedures for new construction or reconstruction, and procedures for rehabilitation of existing pavements.
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