bmfree |
The 'bmfree' function returns a 'tux' matrix of time 't', speed 'u' and location 'x' values. |
bmfree2 |
The 'bmfree2' function returns a 'tux' matrix of time 't', speed 'u' (fps) and location 'x' (feet). |
brkcross0 |
'brkcross0' estimates the time, speed and location that a vehicle crosses bottleneck location 'x' = 0. |
brkdelay |
'brkdelay' is a wrapper function for 'brktrials2'. |
brkdelay3 |
'brkdelay3' is a wrapper function for 'brktrials3'. |
brksummary |
The function 'brksummary' is a wrapper for 'accelpass' and 'passplot'. |
brktrials2 |
'brktrials2' produces 't-x' trajectories for lead and following vehicles at a bottleneck |
brktrials3 |
'brktrials3' produces 't-x' trajectories for lead and following vehicles at a bottleneck |
brktrials3setup |
'brktrials3setup' produces 't-x' trajectories for lead and following vehicles at a bottleneck |
f1 |
Space headway 'h' between the lead and following vehicles at time 't'. Lead and following vehicles use 'gbm' and constant speed models, respectively. |
f2 |
Headway 'h' between the lead and following vehicles at time 't'. Lead and following vehicles use constant speed models, respectively. |
findt1 |
'findt1' returns the deceleration time 't1', the location 'xf1', and speed 'uf1' of the following vehicle at time 't1'. |
findt1ab |
The 'findt1ab' returns the time 'tf1' and the location 'xf1' and speed 'uf1' of the following vehicle when the driver begins to decelerate. |
findt2 |
'findt2' returns the time 't2' and 'xf2' when the following vehicle driver recognizes the lead vehicle has decelerated. |
findt2ab |
't2' is the intersection point of the following driver sight-line and lead vehicle 'x' trajectory. Lead vehicle location 'xl2' and speed 'ul2' at the intersection point, respectively. |
findt5 |
The time 't5' when the following vehicle reaches the bottleneck or location 'x' = 0. |
findt5ab |
The time 't5' when the following vehicle reaches the bottleneck or location 'x' = 0. |
formqueue |
The 'formqueue' function is used to explain queuing upstream of a bottleneck. |
freeflowpass |
The 'freeflowpass' function estimates the relative locations of two vehicles where one passes the other. |
passplot |
The function 'passplot' plots the data from 'brksummary', 'freeflowpass', 'decelmerge' data frames. |
plotcrossover |
A 'ggplot2' plot of crossover traffic data. |
plotdesire3 |
'plotdesire3' creates 't-x' desire-line trajectories. |
plotfollow |
Produces a time-distance 't-x' trajectory for 'vehicle i = 2'. |
plotfollow3 |
'plotfollow3' adds a new trajectory to an existing graph. |
plotlead |
Produces a time-distance 't-x' trajectory for the lead vehicle, 'vehicle = 1'. |
plotmerge3 |
'plotmerge3' creates 't-x' safe headway trajectories. |
plotoptimize |
'plotoptimise' produces 't-x' trajectories for 'nveh' drivers |
plottux |
'plottux' produces 't-u' and 't-x' trajectories for a lead and following vehicles on a ring road, |
plotupstream |
'plotupstream' produces 't-x' trajectories for lead and following vehicles at a bottleneck |
t0 |
't0' is the time the analysis is initiated. |
t1 |
't1' is time the following vehicle realizes the lead vehicle is decelerating. |
t2 |
't2' is time the following vehicle realizes the lead vehicle is decelerating. |
t3 |
't3' is time the lead vehicle completes deceleration. |
theta |
The exponential deceleration rate 'theta' of the lead vehicle. |
trajectoryab |
'trajectoryab' fits a second-order velocity model and produces a 't-x' trajectory for 'vehicle = i' where 'i = 3,4, ..., nveh'. |
trajectoryab3 |
'trajectoryab3' fits a second-order velocity model and produces a 't-x' trajectory for 'vehicle = i' where 'i = 3,4, ..., nveh'. |
trial |
The function 'trial' produces traffic performance information, stored in lists 'L' and 'Fw' for lead and following vehicles, respectively/ 'L' and 'Fw' contain the information needed to graph a time-distance 't-x' trajectories for two vehicles. |
tuxvfix3 |
'tuxvfix3' fixes 'hsafe' violations for vehicle 'veh' in matrix 'tuxv'. |
uab |
Estimate distance 'u' using second-order speed function. |
ubreakdown |
The 'ubreakdown' function generates a breakdown speed vector 'ubk' assuming a lognormal distribution. |
uf0 |
The following 'f' vehicle speed 'uf0' at time 't0'. |
uf1 |
The following 'f' vehicle speed 'uf1' at time 't1'. |
uf2 |
The following 'f' vehicle speed 'uf2' at time 't2'. |
uf3 |
The following 'f' vehicle speed 'uf3' at time 't0'. |
uk_sdk |
A speed volatility model. |
ul0 |
The lead 'l' vehicle speed 'ul0' at time 't0'. |
ul1 |
The following 'l' vehicle speed 'ul1' at time 't1'. |
ul2 |
The following 'l' vehicle speed 'ul2' at time 't2'. |
ul3 |
The following 'l' vehicle speed 'ul3' at time 't3'. |
usdBBridge |
The 'usdBBridge' function from Iacus. |
usdzipper |
The 'usdzipper' function is used to perform a sensitivity analysis of a single vehicles in traffic breakdown. |
xab |
Estimate distance 'x' using second-order speed function. |
xabmerge |
'xabmerge' produces 't-x' trajectories for a pair of lead and following vehicles. |
xabmerge3 |
'xabmerge3' produces 't-x' trajectories for a pair of lead and following vehicles. |
xabparam |
Estimate the parameters 'a' and 'b' of a first-order acceleration model 'a + b * t'. |
xf0 |
The lead 'f' vehicle location 'xf0' at time 't0'. |
xf1 |
The lead 'f' vehicle location 'xf1' at time 't1'. |
xf2 |
The lead 'f' vehicle location 'xf2' at time 't2'. |
xf3 |
The lead 'f' vehicle location 'xf3' at time 't3'. |
xfollow |
Estimate 'x' distance traveled using a constant speed model. |
xl0 |
The lead 'l' vehicle location 'xl0' at time 't0'. |
xl1 |
The lead 'l' vehicle location 'xl1' at time 't1'. |
xl2 |
The lead 'l' vehicle location 'xl2' at time 't2'. |
xl3 |
The lead 'l' vehicle location 'xl3' at time 't3'. |
xstart |
'xstart' is a vector that designates the start 'x' location for the 'brktrials' function. |