These are two data sets collected in 1993 on two individual lanes
(lane 2 and lane 3) of the 4-lane Californian freeway I-880. The data were
collected by loop detectors, and the time units are 30 seconds per
observation (see Petty et al., 1996, for details).
Usage
data(lane2)
data(lane3)
Arguments
Format
Two data frames (lane2 and lane3) each with 1318 observations
on the following two variables:
flow
a numeric vector giving the traffic flow in vehicles per lane per hour.
speed
a numeric vector giving the speed in miles per hour.
Details
The data is examined in Einbeck and Tutz (2006), using a nonparametric approach
to multi-valued regression based on conditional mean shift.
References
Einbeck, J., and Tutz, G. (2006). ``Modelling beyond regression functions:
an application of multimodal regression to speed-flow data''. Journal of the Royal Statistical Society, Series C (Applied Statistics),
55, 461-475.