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  1. trafficPro

    Cul-De-Sac with Right-In Access

    It is unclear (to me) whether the access is "Right in" to the destination, or "Right in" to the cul from the traffic generator. What is volume of traffic in cul and in access leg? What is purpose of changing T intersection to cul? Is there a large U-turn component? Is...
  2. trafficPro

    Maintain bulb shape of cul-de-sac or straighten?

    If thye upkeep of round a bouts makes them unpopular, but some traffic calming devices are needed to prevent rat race speeding, why not make use of the wider ROW at the two now joined cul bulbs. create a chicane by jogging the alignment first from one side of the wider ROW to the other side...
  3. trafficPro

    speed hump funding / traffic control or pavement?

    As an aside, many towns have an ordinance written in years ago, promoted by the fire Department, PROHIBITING the construction of any kind of bumps in the roadway. Legal opinion was that althought this was written in the days of speed bumps, it also includes humps. TrafficPro
  4. trafficPro

    Cul-de-Sac and road extension question

    How far is the road to be extended? What is the new end condition to be vis a vis u-turns? Who maintains the island? Can fire trucks get past it easily? What is the ROW situation? Quite often the cul reaches the end line with the circle tangent to the end line at one point only. That means land...
  5. trafficPro

    Flyover Project

    Try AUTOTURN. it works with Autocadd.
  6. trafficPro

    4" to 5" high wheel stop

    The low clearance (4") is what was giving me the problem. I have found non-concrete ones that look good. The "Concrete" criteria was the facility's original choice. I seem to have convinced them to come into the 21ST century Thanx all for your assistance.
  7. trafficPro

    4" to 5" high concrete wheel stops

    good site. Thanx Trafficpro
  8. trafficPro

    4" to 5" high wheel stop

    Does anyone know of a state DOT approved 4" to 5" concrete wheel stop. Need plans & specs TrafficPro
  9. trafficPro

    4" to 5" high concrete wheel stops

    Does anyone know of a state DOT approved concrete wheel stop spec and plan sheet for a 4" to 5" high wheel stop? Trafficpro
  10. trafficPro

    Do Roundabouts Reduce Traffic Volume?

    Take a careful look at the Municipal Ordinance. You may not be able to do what you want to do. Many communities have ordinances passed years ago, at the "suggestion" of fire departments, that preclude building any bump or hump in the roadway. Educating the fire dept and the Council is...
  11. trafficPro

    Texture of ADA Ramps

    I have a copy of a Oct 2002 e-mail from Dave Bizuga of NJDOT (sent to me by COTE-L) re NJDOT's experience with Safti-Trax made by COTE-L Industries (201-836 0733) stating that a 2002 survey of 139 curb ramps detectable warning surfaces, placed in 1995, showed 49% were 90 to 100% intact and...
  12. trafficPro

    Cul-de-sac Design

    Many culs have lolly pop alignment. That is the cul is centered on the incoming roadway. The criteria seems to be the ability of the developer to get a reasonable lot layout. Once the roadway is located make sure the radii are sufficient going in and out. Sometimes a central landscape island is...
  13. trafficPro

    Cul-de-sac Design

    Many culs have lolly pop alignment. That is the cul is centered on the incoming roadway. The criteria seems to be the ability of the developer to get a reasonable lot layout. Once the roadway is located make sure the radii are sufficient going in and out. Sometimes a central landscape island is...
  14. trafficPro

    Sidewalks In or Out

    Several things come into consideration. 1 Are there existing sidewalks nearby? Would this be a gap? 2 On a cul, will school buses enter the cul or will kids have to walk to the main street? 3. Where is school, playground, ball fields? In walking distance? 4. Are there many/any peds on heavy thru...
  15. trafficPro

    Cul-de-sac Design

    We find the best flow of traffic occurs when the cul is tangent to the right (incoming)side of the road. In other cases we increase the radius of the curb return where the cul bulb meets the roadway, to provide better flow. The radius depends on the alignment of the road and bulb. Throw a curve...
  16. trafficPro

    Curb height standards

    Curb height also is determined by other factors. Such as need for curb side drainage enclosure after repaving. In some specific cases, I eliminate the use of wheel stops (a tripping hazard) on parking adjacent to wide islands, by adding two feet to the island and reducing the parking space...
  17. trafficPro

    Access to roadway

    Can you relocate the channel away from the roadway for a short distance, so as to provide a greater intersecting roadway length between channel and bridge, and permit a lesser grade bridging? Also check the rollover to prevent vehicles bottoming on the peak. Good Luck TrafficPro
  18. trafficPro

    Texture of ADA Ramps

    Do you know which specific "glue on's" were tried and failed? That seemed to be our best bet for retro fitting, but we have not done any yet. Interested in any field use results, good or bad. we are NE state with heavy public usage at our sites. TrafficPro
  19. trafficPro

    Bird control

    The Port Authority of NY & NJ uses a trained falconer at JFK, not to kill or hurt the birds, but just to scare them off. The airport is in or adjacent to a wildlife ptreserve. TrafficPro
  20. trafficPro

    Requirement for curb ramps

    I would put one across the main street. Two if you believe the ped volumes warrant that treatment. however, watch the location of stop bar and sign in relation to the crosswalk. Also note that most catch basins tend to be located in the same general area. These tend to get in the way of each...

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