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Recent content by cgarlick

  1. cgarlick

    Pivot Table Tutorial

    Does any one have any documentation/tutorials on the use of pivot tables that they are willing to share with me? I have been trying to introduce and encourage them to use them, but would like to prepare and distribute a document that they can use and read. I searched Microsoft without any...
  2. cgarlick

    Dual Left Turn lanes - Beginning Taper to one lane

    I did not consider decision sight distance. The design speed on both legs is 45 MPH. There is a two lane segment approaching the intersection for this movement.
  3. cgarlick

    Dual Left Turn lanes - Beginning Taper to one lane

    Actually the last sentenance needs some clarification. We would start to measure how long it would take for cars starting at a low speed while turning the corning(say 5 MPH) and determine how long it would take for them to reach the posted speed and THEN begin the taper. Your thoughts and...
  4. cgarlick

    Dual Left Turn lanes - Beginning Taper to one lane

    We have a condition where we have dual left turn lanes going into the intersection and am looking for guidance on when to begin to taper the two lanes into one lane. We looked through our state's design guide and also AASHTO design guide and did not find any guidance. One initial thought was...
  5. cgarlick

    truck turn templates

    Unless you are able to hold an axis pretty still, I recommend that you use a computer program or be conservative. We have found since using Autoturn(one program available) our designs do allow trucks to manupulate turns then the designs the templates put out. Obviously the templates are the...
  6. cgarlick

    Specifications

    What do you want to know about it?
  7. cgarlick

    Truck lane Warrants

    I understand how the charts work, but is there any way to determine if there is a best fit equation that can be used for truck climbing lane warrants chart as identified in AASHTO?
  8. cgarlick

    Softdesk Version 8 Point Alignment Database

    This is really a autodesk (software question). This error is a corrupt database alignment Autodesk has a suggest method to fix this problem. It can be found at discussion.autodesk.com. I am not giving you the address intentionally so you can learn how to use their knowledge base yourself as it...
  9. cgarlick

    Non-Conventional Concrete Barrier

    Has anyone used any non-conventional barrier such as sand/water filled? I found the Triton Barrier TL-3 water filled that are crashworthy. Are they cheaper? What is the life span? Thanks
  10. cgarlick

    Traffic Controllers and Stats. - History

    I am looking for some infomration on a couple of things. 1. 170 controllers used for counting traffic. I know they have been used for several years in locations. I would like to know if there is any information out there (other then what the man. provides) about history and longevity of the...
  11. cgarlick

    Dedicated Left Turn Lanes

    This might seem like a bizarre question. When one analyze/compare volumes of a single left dedicated turn lane with dual left turn lanes, do you consider a friction factor that is caused when people take the turn at the same time? Initially you would think that increasing one lane to two...
  12. cgarlick

    Median Crossovers

    We are designing a crossover. Shifting traffic across a 13' median. The diagram we reference is TA-39 from MUTCD. HOwever, in our experience, we feel the the diagram is ambiguous and agressive. However, we are just wondering what others think and use. One additional comment is note 2 in MUTCD...
  13. cgarlick

    Clearance for Ped. Bridge under RR

    Thanks for the information. I did look through the AREMA guidelines and did not see anything. R.R. companies have a monopoly that is out of control. I understand safety is important, but everyone needs a check n balance.
  14. cgarlick

    Clearance for Ped. Bridge under RR

    Anyone know where I can find this? I have the clearance for with respect to the Bicycle but nothing relative to the R.R.
  15. cgarlick

    Truck Lane Warrant software

    Does anyone know of any software for Truck Lane warrants? We have a graph made in the fifties from the MeDOT. It is just very laborious, subjective and obsolete at times.

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