05-02-2016, 06:47 AM
Since z171 is listed at Station# 3+30.1 on the WC final survey plat, same as z166 on CE884, the next speed calculation of interest is z171-z186:
15frames@20.7ft traveled
18.3/15 =1.22 x 20.7ft = 25.254ft per sec /1.47 =17.18mph
17.18mph -13.44mph(z156-z166) = 3.74mph
Speed from Z168-171 on the WC final survey plat = 3.74mph
chris
15frames@20.7ft traveled
18.3/15 =1.22 x 20.7ft = 25.254ft per sec /1.47 =17.18mph
17.18mph -13.44mph(z156-z166) = 3.74mph
Speed from Z168-171 on the WC final survey plat = 3.74mph
chris
![[Image: 171-186.jpg]](http://i140.photobucket.com/albums/r25/123steamn/171-186.jpg)