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PEDESTRIAN SAFETY


            CALCULATOR





                                                            Steel Type                      ASTM-A53
                                                            Yield Strength                  30000 psi

                  BOLLARD STRENGTH TABLE                    Ultimate Strength               48000 psi
                                                            Allowable Bollard Deflection Distance  2 ft
                                                            Vehicle Weight                  5000 lb
                                                            Contact Height                  14 in



                                   ASTM Steel Type                ASTM Steel Type       ASTM Steel Type

                      Nominal                        Wall             1    Speed            1    Speed
                      Pipe Size   I.D.    O.D.     Thickness  Yield Speed  Rating 2  Yield Speed  Rating 2


                      (in)  (sch)  (in)    (in)       (in)       (mph)      (mph)     (mph)      (mph)
                       4   40    4.026    4.500      0.237        9.3       7.6        13.2       10.8
                       4   80    3.826    4.500      0.337       10.7       8.7        15.1       12.3
                       6   40    6.065    6.625      0.280       15.3       12.5       21.6       17.7
                       6   80    5.761    6.625      0.432       18.1       14.8       25.6       20.9
                       8   40    7.981    8.625      0.322       21.6       17.7       30.6       25.0
                       8   80    7.625    8.625      0.500       25.7       21.0       36.4       29.7
                      10   40    10.020   10.750     0.365       28.9       23.6       40.9       33.4
                      10   80    9.750    10.750     0.500       32.9       26.8       46.5       37.9
                      12   40    12.000   12.750     0.375       35.3       28.8       49.9       40.7
                      12   80    11.750   12.750     0.500       39.6       32.4       56.1       45.8
                    1,2  Refer to next page for additional considerations.






                 Bollard Speed Ratings
                    One Bollard  Two Bollards


                                            Nominal Pipe Size























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