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1 This Webinar is being presented from a computer with a resolution of 1280 X Using a similar setting on your machine may improve your viewing experience.

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3 Webinar Series Introduction Purpose

4 Webinar Series Introduction Software Name Change

5 Webinar Series Introduction Webinar Path Module 1: Module 2: Module 3: Module 4: Module 5: Module 6: Module 7: Module 8: Module 9: About AASHTOWare Pavement ME Design Software Climate Inputs Traffic Inputs Material and Design Inputs for New Pavement Design Material and Design for Pavement Rehab with Asphalt Overlays Material and Design Inputs for Pavement Rehab with Concrete Overlays New Asphalt Pavement Structures Asphalt Overlays of Asphalt Pavement New Concrete Pavement Structures Module 10: Unbonded Concrete Overlays

6 Module 3: Traffic Inputs Objectives After completing Module 3, you will be able to: recall how to navigate the user interface to define the traffic inputs needed recall how to import traffic data from XML files identify how to edit traffic data recall how to check traffic data for errors recognize how to create a traffic XML file recall how to save/retrieve traffic inputs recall how traffic data are used in ME Design recognize possibilities for conducting a special analysis

7 Module 3: Traffic Inputs Lesson 1: Navigating the User Interface Topics Covered Quick walkthrough of ME Design s main user interface screen Ways to access the traffic inputs Right-click functionality Adjusting form factors for data intensive screens Error checking

8 Module 3: Traffic Inputs Lesson 2: Traffic Inputs Topics Covered Types of traffic inputs needed Hierarchical inputs levels Description of inputs Program defaults

9 Module 3: Traffic Inputs Lesson 2: Traffic Inputs Reference Key Reference AASHTO Mechanistic Empirical Design Guide Manual of Practice Date: 2008 Section 9.1: Truck Traffic

10 Module 3: Traffic Inputs Lesson 2: Traffic Inputs Overview Truck Factors AASHTO 1993 ME Design Truck Volumes AADT & percent trucks Yes Yes Truck class distribution Yes Yes Lane & directional distribution Yes Yes Axle types per truck Yes Yes Growth of trucks (each class) Yes Yes Axle weights; axle load distribution Yes Yes Quality checks on WIM/AVC data Yes Yes Axle load equivalency factors Yes No!

11 Traffic Inputs for Module 3: Traffic Inputs Lesson 2: Types of Traffic Inputs Traffic Volume Two-way AADTT Directional & Lane Distributions (DDF, LDF) Traffic Growth Factor Highway Capacity Limits Operational Truck Speed Volume Adjustment Vehicle Class Distribution Monthly Adjustment Hourly Truck Distribution Axle Load Distribution Single Tandem Tridem Quad General Traffic Inputs Axles Per Truck Axle Configuration Wheelbase

12 Module 3: Traffic Inputs Lesson 2: Hierarchical Input Levels Input Level Determination of Input Values Knowledge of Inputs 1 2 Project/Segment Specific (WIM/AVC/Manual) Regional Values, Avg. (WIM/AVC/Manual) Good Fair 3 Global Defaults (ME Design software) Poor At Level 3, only AADTT, LDF, DDF, and generic descriptions of truck class distribution on the design roadway required to perform analysis! 1 2

13 Option to enforce lane capacity limits in design/ analysis Capacity limits are user-specified or based on HCM Module 3: Traffic Inputs Lesson 2: Lane Capacity Limits

14 Module 3: Traffic Inputs Lesson 2: Lane Capacity Limits Highway facility type Freeway Multilane highway Two-lane highway Rural or urban Highway terrain type Level Rolling

15 Module 3: Traffic Inputs Lesson 2: Lane Capacity Limits Monthly Count of Trucks Cap on estimated truck volumes enforced in 120 months Months in service HCL not enforced HCL Enforced

16 Module 3: Traffic Inputs Lesson 3: Data Manipulation/Save/Retrive Topics Covered Copy/Paste XML Import/Export Validation of third-party data Database import/export

17 Module 3: Traffic Inputs Lesson 4: Results and Special Analysis Topics Covered ME Design traffic outputs Impacts of Truck Traffic Ways to perform special analysis

18 Importance of Truck Traffic Module 3: Traffic Inputs Lesson 4: Impacts of Vehicle Distribution on Fatigue Cracking Predicted Fatigue Cracking, % Total Lane Area Time, months TTC-5 TTC-1 TTC-4 TTC-12 TTC-14

19 Importance of Truck Traffic Module 3: Traffic Inputs Lesson 4: Impacts of Monthly Adjustments on Fatigue Cracking Predicted Fatigue Cracking, % of Total Lane Area Winter Traffic Default Seasonal Distribution Summer Traffic Time, Months

20 Module 3: Traffic Inputs Lesson 4: Impacts of Axle Type on Permanent Deformation Single Axles Tandem Axles Tridem Axles Predicted Total Rut Depths, mm Time, Months

21 Future Webinars 1. About AASHTOWare Pavement ME Design Software COMPLETED 2. Climate Inputs COMPLETED 3. Traffic Inputs COMPLETED 4. Material & Design Inputs for New Pavement Design Jan 30, Material & Design for Pavement Rehab with Asphalt Overlays Feb 6, Material & Design Inputs for Pavement Rehab with Concrete Overlays Feb 13, New Asphalt Pavement Structures Feb 20, Asphalt Overlays of Asphalt Pavement Feb 27, New Concrete Pavement Structures Mar 6, Unbonded Concrete Overlays Mar 13, 2013 US version: Metric Version: 11:00 am to 1:00 pm (EST) 2:00 pm to 4:00 pm (EST)

22 Thank you for Attending! AASHTOWare Pavement ME Design Webinar Contacts: Gary Crawford, FHWA Concrete Quality Engineer Phone: (202) Jagannath Mallela, ARA Inc. Principal Engineer Phone: (217) ME Design Resource Website