Horizontal/Subsurface Infrastructure & Transportation


Latest Discussion Posts

  • Dear Friends! I would like to draw in your notice that I am going to start research in Transportaion System. I need topics or ideas from my research. Kindly suggest me good ideas. Your idea means a lot for me. Thanks. ------------------------------ Muhammad ...

  • Rule 1 when there are legal maximums/minimums that must be considered, NEVER design to those numbers.  Take at least the normal tolerances for whatever the construction types and materials involve are and subtract/add as appropriate, as the beginning ...

  • Hi Kent, Excellent question!  I have investigated ADA Ramos in a number of states. Generally, if the ramp is less then the required 1:12 and 2% there is no issue of course. The problems arise when those requirements are exceeded. Those limits were set ...

  • Kent, It has been my experience with the Illinois Department of Transportation that no tolerances above the 2% max. cross slope and 1:12 running slope are allowed. As a result, I have incorporated tolerances into my design by keeping the cross slope ...

  • Kent,  In general, tolerances are not given for cross slopes or grades (whether in ADA ramps or other hard surfaces) because the concrete construction specifications already have tolerances identified, so you if the designer is not careful, the contract ...

  • The National Center for Transportation Infrastructure Durability and Life Extension Center (TriDurLE) is funded by the U.S. Department of Transportation (USDOT) through the University Transportation Center (UTC) program. The TriDurLE 2021 virtual symposium ...

  • Hello, In Anchorage, we have historically not allowed construction tolerances that would result in exceeding stated maximum cross slopes and running grades of ADA features such as curb ramps in rights of way.  The local construction industry has requested ...

  • Hello Ms. Donald, When I got back to working on Ohio State campus as a Student Research Assistant for the Department of Civil Engineering, the office was following the advice in the paper. Before the pandemic hit, students like me would go onto campus ...

  • Dear Bryce, With reference your concern/query its completely an advance state-of-the art in to consideration. Earlier / last year I have used & utilise the free report documents from authentic official/ Institute mail ID from the below site for your ...

  • Hi Bryce. Many decades ago I had the pleasure of working during construction in: 1. A drill, shot, muck rock tunnel, 2. A shield-driven, compressed air, cast-iron ringed tunnel, and, 3. An open-cut, shield, install, cover tunnel. Short but exciting ...

Announcements

  • 2021 Buchanan Lecture

    The 2021 Buchanan Lecturer is Dr. Philippe Jeanjean who is the Senior Advisor for Geotechnical Engineering at BP America in Houston, Texas. Dr. Jeanjean’s lecture is entitled “Offshore Geotechnics: From Oil & Gas to Renewable Energy.”

    Also on the agenda is Professor Edward J. Cording, who will be presenting his 2020 Terzaghi Lecture “Observing and Controlling Ground Behavior with Tunnel Boring Machines.” Professor Cording is Professor Emeritus in the Department of Civil and Environmental Engineering at the University of Illinois at Urbana Champaign.

    The lectures will take place virtually via Zoom, and will begin at 2:00 pm US Central Time on November 12, 2021. Please relay to colleagues and students. A Zoom link to attend the Buchanan Lecture will be posted on this website (https://briaud.engr.tamu.edu/buchananlecture/) a few days before the lecture and a video will be posted on that website afterwards for those who are unable to attend.