E9.18: Data Travel Times and Usage for Automobiles and Public...
In SenSrivastava: Datasets from Sen & Srivastava

Description Usage Format Details Source Examples

The E9.18 data frame has 51 rows and 4 columns.

1	data(E9.18)

This data frame contains the following columns:

t.a: a numeric vector, travel time by car, in tenth of minutes.
t.r: a numeric vector, travel time by public transportation, in tenth of minutes.
m.a: a numeric vector, number of those who used a car or van either as driver or passenger.
m.r: a numeric vector, number of people using any kind of public transportation.

Travel times modified by one of the authors to reflect the cost of parking. For downtown zones (Chicago) this amounted to about 60 minutes.

Selected by Robert Drozd from Census (US) Urban Transportation Planning Package, for the Chicago area.

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data(E9.18)
summary(E9.18)
plot(E9.18)

SenSrivastava documentation built on May 29, 2017, 9:18 p.m.

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