rrtrials {cartools}R Documentation

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

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))

[Package cartools version 0.1.0 Index]