Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


Measuring number of passes of car for pavement design

Measuring number of passes of car for pavement design

Measuring number of passes of car for pavement design

Hello guys,

I have this situation in my project: I need to design a pavement for an administrative building where will have 50 people working in there. About visitors or customers, it is not a building for receiving them, so actually, they will receive, perhaps, 3 or 4 occasionally. About traffic of vehicles, it will be passenger's car, small and medium truck, and fire truck rarely. This pavement will be concrete asphalt, base and subbase will be M-40 and C-40, and subbgrade will be the existent subbgrade in this location (they won't change the subbgrade, just renewing upper layers). So, how can I measure the number of passes for each vehicle? Well, reminding that it will be a design for 25 years.

Thank you!

RE: Measuring number of passes of car for pavement design

If your traffic is predominantly cars and light trucks, most of the pavement damage will be environmental, from thermal stresses and water infiltration.

The most common vehicle-related damage I've seen in parking lots is a creep-type deformation under the wheels in the parking stalls. Street pavement design based on number of passes won't address that. Good subbase design and construction, and perhaps some geogrid in the subbase could help mitigate that.

My glass has a v/c ratio of 0.5

Maybe the tyranny of Murphy is the penalty for hubris. - http://xkcd.com/319/

RE: Measuring number of passes of car for pavement design

If you run the numbers with that traffic, you'll probably get something like 3/4" of asphalt and 3" base.
You should use a minimum section of 1.5" asphalt and 6" base and pay attention to the subgrade preparation.

RE: Measuring number of passes of car for pavement design

Thank you

Quote (ACtrafficengr)

for your help! I will pay attention in these points, specially creep-type deformation in parking lots.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


White Paper - Smart Manufacturing for Semiconductor
New technologies and approaches present great opportunities for semiconductor manufacturers to achieve high levels of innovation, yield and improvement. This white paper explores some of these cutting-edge technologies and how they can be applied effectively in the semiconductor industry. Read about how Smart Manufacturing is transforming the semiconductor industry. Download Now
White Paper - Analysis and Simulation in Aircraft Structure Certification
Organizations using simulation and analysis tools effectively see the benefits in their ability to achieve certification faster and with drastically less total cost than those who do not maximize these tools. Read this White Paper to learn about how digital tools such as analysis and simulation help in aircraft structure certification. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close