rrtrials: 'rrtrials' produces 't-x' trajectories for lead and following...

In cartools: Tools for Understanding Highway Performance

Description

rrtrials produces t-x trajectories for lead and following vehicles on a ring road

Usage

rrtrials(umn, usd, k0, N, T, leff, nveh, xlim, ylim)

Arguments

umn	lead vehicle speed (mph), a number
usd	standard deviation of lead vehicle speed (mph), a number
k0	traffic density (vehicles per mile, vpm), a number
N	number of time-steps, a number
T	upper time range (seconds), a number
leff	effective vehicle length (feet), a number
nveh	number of following vehicles, a number
xlim	plot range along the t axis, a vector
ylim	plot range along the x axis, a vector

Value

The rrtrials function returns t-x trajectories. for the lead and following vehicles on a single-lane road. This is a strict car-following model. Crossing trajectories are disallowed. In addition, a following vehicle driver maintains a safe headway while attempting to minimize travel time. In other words, the following vehicle's movement is constrained. Output from The rrtrials is an output matrix called LF.

Examples

rrtrials(41, 11, 50, 120, 120, 14, 9,   c(0, 120), c(-1000, 7500))
rrtrials(2,  2, 55, 60, 60, 14,    9,   c(0, 60), c(-2000, 600))
rrtrials(18.8, 3.8, 55, 120, 120, 14, 9, c(0, 120), c(-1000, 2000))

cartools documentation built on May 1, 2019, 10:40 p.m.