zipper: The 'zipper' function can be used to simulate interaction...

In PJOssenbruggen/Basic: Tools for Understanding Highway Performance

Description

The zipper function can be used to simulate interaction among three vehicles in car following on a single lane or three vehicles merging on a two-lane highway.

Usage

zipper(tstart, tend,
    ustart1, uend1, xstart1, xend1,
    ustart2, uend2, xstart2, xend2,
    ustart3, uend3, xstart3, xend3)

Arguments

tstart	start time, a number
tend	end time, a number
ustart1	start speed (mph) for vehicle in lane 1, a number
uend1	end speed (mph) for vehicle in lane 1, a number
xstart1	start location for vehicle in lane 1 (feet), a number
xend1	end location for vehicle in lane 1 (feet), a number
ustart2	start speed (mph) for vehicle in lane 2, a number
uend2	end speed (mph) for vehicle in lane 2, a number
xstart2	start location for vehicle in lane 2 (feet), a number
xend2	end location for vehicle in lane 2 (feet), a number
ustart3	start speed (mph) for vehicle in lane 3, a number
uend3	end speed (mph) for vehicle in lane 3, a number
xstart3	start location for vehicle in lane 3 (feet), a number
xend3	end location for vehicle in lane 3 (feet), a number

Value

zipper uses a deterministic model and animation to illustrate an “idealistic” situation, a so-called a “zipper merge.”

PJOssenbruggen/Basic documentation built on May 25, 2019, 1:20 p.m.