findt1ab returns the time tf1 and the location xf1 and speed uf1
of the following vehicle when the driver begins to decelerate.The findt1ab returns the time tf1 and the location xf1 and speed uf1
of the following vehicle when the driver begins to decelerate.
findt1ab(xl0, xf0, uf0, ul0, tseq, useq, t1, t2)lead vehicle location at time t0, a number
following vehicle location at time t0, a number
following vehicle speed at time t0, a number
lead vehicle speed at time t0, a number
time sequence of the lead vehicle l, a vector
speed sequence of the lead vehicle l, a vector
start time, a number
end time, a number