Replies

The following are the results of my analysis of the FBI video from its beginning through Finicum's truck entering the snowbank at the roadblock.

(reference: https://www.youtube.com/watch?v=aAGxDWKrjPQ )

Table 1.

                        FBI             video           approximate 
      event          timestamp        run time            location
 
A     video start      25:32             0:00       N 43.80438 W 118.98939

B     stop             26:42             1:10       N 43.81393 W 118.98290

C     leave            33:48             8:15             unchanged

D     roadblock        34:48             9:15       N 43.82744 W 118.97138




Table 2.

                               approximate         duration         estimated
       description          distance (miles)        (mm:ss)        average mph
                                  
       event A - event B          .75                 1:10             40

       event B - event C          n/a                 7:05            n/a  

       event C - event D         1.12                 1:01             66   


Misc.

The roadblock was inside the Malheur National Forest. 

Based on online "street views" I believe the limit on US 395 is 55 mph. 

Based on various National Highway Traffic Safety Administration publications, a 
passenger vehicle traveling 60 mph requires 216 feet to stop. Of course this is 
a generalized figure which does not take into account the combined mass of a 
particular vehicle and its occupants or cargo. Total mass, vertical & horizontal 
sight lines, driver reaction time, road conditions, etc. are all factors to take
into consideration.