Highway pavement design example

Pavement design introduction design of flexible pavements. The pavement structure should be able to provide a surface of acceptable riding quality, adequate skid resistance, favorable light. Design a flexible pavement section for a road using the ufc design method. Characterizing existing hotmix asphalt layer damage for mechanistic pavement rehabilitation design fhwaproj140126 demonstration of network level pavement structural evaluation with traffic speed deflectometer fhwaproj095. Concrete block surfaces are suitable for these applications. For jointed concrete pavements, regardless of whether reinforced or nonreinforced, the aashtoodot method of pavement design calculates the same. The aashto guide for design of pavement structures aashto, 1993 is the primary document used to design new and rehabilitated highway pavements. Highway design introduction to horizontal and vertical alignment duration. Highway design manual november 2014 appendix 71 1 flexible pavement analysis the aashto chart 4002 7 following the example in this appendix is for a flexible pavement, terminal serviceability index pt of 2. The inputs emphasized on the maximum load that the pavement would be able to bear over its lifetime, the performance of the pavement design with an increase in the traffic load. Mechanical methods based on stressstrain calculation. A rural twolane collector highway containing 6 ft 1. Flexible overlay pavement design example 1993 aashto pavement design project name and location. Quality asphalt pavement may be constructed in a wide range of soil, weather, and loading conditions.

The deformation with in the bituminous layer is assumed. This project will consist of the construction of a flexible overlay of an existing flexible pavement to extend route 123 to intersect with route i80 in north jersey. By looking at several different design periods and reliability levels this example gives an idea of the relative influence of these inputs. Flexible pavement empirical design example pavement interactive. Work can be verified by using the flexible pavement structural design utility. The traffic load distribution consists of the frequency distribution of axle group loads. Thickness is vertical compressive strain comes to the subgrade due to the standard axle laden of magnitude 8. Flexible overlay pavement design example 1993 aashto. Pavement design is the major component in the road construction. Equivalent single axle load although it is not too difficult to determine a wheel or an axle load for an individual vehicle, it becomes quite complicated to determine the number and types of wheelaxle loads that a particular pavement will be subject to over its design life. Cee 3604 transportation engineering pavement design.

Jun 09, 2017 if you found this video helpful then please hit that like button. Sustainable solutions for resurfacing and rehabilitating. Pavement design life is a term that engineers use when theyre planning to build a new road or maintain an existing roadway. Establishing flexibility in caltrans highway design standards and procedures, especially in the context of urban environments and multimodel design. State aid rigid pavement design guidelines pdf, 175 kb mnpaverigid pavement design. Rigid pavement is designed and analyzed by using the elastic theory. Different pavement types use different types of joints and reinforcement to control the forces acting on the concrete pavement. Types of pavements flexible pavement rigid pavement. Pddm chapter 11 pavements federal highway administration. Nearly onethird or onehalf of the total cost of construction, so careful consideration should be taken in design of pavement. Rdgn042 pavement design for carriageway construction page 4 of 42 1. The rigid pavements are made of cement concrete either plan, reinforced or prestressed concrete. Approximately 80% of all states use the aashto pavement design procedures, with the majority using the 1993 version. Jun 17, 2017 this lecture includes following topics design of rigid pavements what are rigid pavements.

Engineering consultant to the american concrete pavement association. The major change is how the details of the traffic load distribution tld are used as design inputs. Esal is a concept developed from data collected at the american association of state highway officials aasho road test to establish a damage relationship for comparing the effects of axles carrying different loads. May, 2012 aashto 1993 flexible pavement design considers a number of inputs regarding the structure of the pavement, the subgrade support available and the maximum bearable load. Properties of rigid pavements components of rigid pavements created by aman dembla help the. The american association of state highway officials. Nchrp 7a mechanisticempirical design of new and rehabilitated pavement structures, design guide nchrp 7a, trb, 2004.

Our responsibilities include the pavement design analysis, alternate pavement designs hma and concrete and lifecycle pavement cost analysis for indot roadway projects. Design, types, flexible and rigid pavement, notes and functions. Design of pavement can be done by at east the following methods. Characterizing existing hotmix asphalt layer damage for mechanistic pavement rehabilitation design fhwaproj140126. Introduction to flexible pavement design cedengineering. This project will consist of the construction of a new flexible pavement to extend route 123 to intersect with route i80 in north jersey. Aashto 1993 flexible pavement design considers a number of inputs regarding the structure of the pavement, the subgrade support available and the maximum bearable load. Theyll also use a number of years to go along with it, for example. Design and construction of highway pavement joint systems. Pavement design highway users have an increased awareness of pavement quality.

This guide presents examples of designs, procedures, and applications that have. This lecture includes following topics design of rigid pavements what are rigid pavements. Pavement branch pavement design off the national highway system county franklin item xxxxxx. Design three types of highways, all main roads but with different traffic loads. Design and construction of highway pavement joint systems troubleshooting joint design and construction issues mark b. Jointed plain concrete pavement jpcp continuously reinforced concrete pavement crcp pavement design. New flexible pavement design example 1993 aashto pavement.

Determine the desired terminal serviceability, p t. Design a new flexible pavement for a major interstate highway using the following conditions four lanes each direction. The office of pavement engineering is responsible for the pavement design analyses of new, reconstruction, rehabilitation, and preservation projects for indots roadways. This lecture includes following topics types of pavements. Design period or design life of a pavement is the period of time for which the initially. Flexible pavement empirical design example pavement. If you found this video helpful then please hit that like button.

Washington state i90 pavement rehabilitation using precast concrete pavement, fhwahif19026 2019. It awesomely motivates me to create more videos for you. Design of flexible pavement using aashto method youtube. Pavement design with examples complete data civildigital. It lays down the general principles and technical aspects to be considered while. To help agencies and contractors meet the demand for highquality pavements, napas asphalt pavement magazine regularly provides articles that directly address issues such as mix type selection and statistical specifications. Rigid pavement empirical design example pavement interactive. Code of federal regulations, title 23, part 626, pavement. Pavement design report free example download link more from my sitehighway engineeringtraffic and highway engineeringthe handbook of highway engineering toggle navigation about us. April 27, 2009 mndot pavement design examples example no. The austroads pavement structural design guide has undergone a major revision that was released in december 2017. Calculate the effective modulus of subgrade reaction k this calculation is a multistep process in the 1993 aashto guide for design of pavement structures.

The site is a small commercial facility that hosts receptions and social events and therefore has a large number of parking spaces. In this video, you will know how to design a flexible pavement with examples. The road pavement is the actual surface on which the vehicles will travel. Critical condition of stress in the rigid pavement is the maximum flexural stress occurring in the slab due to wheel load and the temperature changes. Paul guyer is a registered civil engineer, mechanical engineer, fire protection engineer, and architect with over 35 years experience in the design of buildings and related. Flexible overlay pavement design example 1993 aashto pavement. Its purpose is two fold, to provide friction for the vehicles and to transfer normal stresses to the underlying soils. Xx description example pavement design current adt. Pavement design in road construction design parameters. Road pavement design guide 2 use of the design guide and pavement options this document is intended to cover the design of new schemes of any size and reconstruction or. Introduction this set of guidance notes is intended to serve as a comprehensive reference for highway practitioners on the design of carriageway pavements in hong kong. Design a new flexible pavement for a major interstate highway using the following conditions four lanes each.

Highway design manual change transmittals are posted by change date and include a summary of the significant changes. Providing technical support and design expertise on highway design issues related to motor vehicles, bicycles and pedestrians. New flexible pavement design example 1993 aashto pavement design project name and location. These subjects are central to the issue of highway pavement drainage and are important to highway safety. Pavement is considered failed if 20% of the surface. This guide is the standard that designbuilders shall be held to in the development of new pavement design sections and preservation rehabilitation of existing pavement sections on designbuild projects. Geometric design also affects an emerging fifth objective called livability, which is. The basic objectives in geometric design are to optimize efficiency and safety while minimizing cost and environmental damage.

The geometric design of roads is the branch of highway engineering concerned with the positioning of the physical elements of the roadway according to standards and constraints. Supplement to the aashto guide for design of pavement structures, part ii, rigid pavement design and rigid pavement joint design, aashto, 1998. Empirical methods in which performance of pavements is predicted from the results of road tests and actual expensive. This 2016 asphalt pavement design guide has been prepared to assist readers in understanding asphalt mix pavement design, construction, and rehabilitation. Implementation of composite pavement systems, fhwahif19014 2019.

The roads shall all be designed on the same subgrade. In addition to providing an analytical approach to structural pavement design, chapter 54 presents an analytical method for selecting the most economical pavement design that can be expected to meet structural design requirements. Can use load spectra instead of esals computationally intensive. E position paper on shoulder design f list of test procedures g treatment of roadbed swelling andor frost heave in design h flexible pavements design example i rigid pavement design example j analysis unit delineation by cumulative difference k typical pavement distress typeseverity descriptions l documentation of design procedures. Pavement design illinois department of transportation. Pavement design is governed by a number of considerationsfactors, as given below. To help agencies and contractors meet the demand for highquality pavements, napas asphalt pavement magazine regularly provides articles that directly address issues such.