sbs.simulate: 'sbs.simulate' uses the law of large numbers to establish...
In PJOssenbruggen/Basic: Tools for Understanding Highway Performance

sbs.simulate uses the law of large numbers to establish confidence intervals traffic performance measures.

1	sbs.simulate(nveh1,nveh2,umn,usd,xstart1,delt,tstart,tend,xfunnel,leff,size,kfactor)

`nveh1`	number of vehicles entering the bottleneck from lane 1, a number
`nveh2`	number of vehicles entering the bottleneck from lane 2, a number
`umn`	start speed (mph) for vehicle in lane 1, a number
`usd`	speed standard deviation, a number
`xstart1`	start location of the first vehicle in lane 1, (feet), a number
`delt`	time-step, a number
`tstart`	vehicle crossovers are are permitted below this time, a number
`tend`	upper time range of simulation, a number
`xfunnel`	location where the lane drop is located, a number
`leff`	vehicle length in feet, a number
`size`	sample size, a number
`kfactor`	density at time `t` = 0, a number