When it it impossible to put the bars on top of the state, such as is the case with Rhode

Island and New Jersey, arrows connecting the bars with the state aid in reading the chart. Compare with 202A.

GRAPHIC PRESENTATION

U. S. Department of Agriculture, Bureau of Agricultural Economics. SCALE .4

A. Average Sales Per Farm Through Cooperative Associations for Each of the United States in 1919. 1924, and 1929.

1. While this same material could be presented in a series of groupings with a common

horizontal base, superimposing the bars upon a map not only condenses the material but also gives the geographical distribution.

2. Note the use of arrows to connect tht bars with the states. Compare with 2 0 IB.

■ R«ilro>d5

I Rapid Transit

■ Trollei^kWhicIn

NuMeta or PensoMs

n )\

ikri:-

i-fl-i*

Regional Plan Attociation. Inc., N. Y. C. "Information Bulletin No. 11," Jan. 30. 1933. SCALE .6

B. The Number of Persons Crossing 59th Street South Bound in New York City, by Railroads, Rapid Transit, Trolleys, and Vehicles for a Typical Business Day in 1932-- (24-hour Period).

A traffic study of a particular street is perhaps best presented in this way rather than as a flow map with the width of the lines proportional to the traffic.

MAPS WITH BAR CHARTS

LEGEM D

1924 Persons ^m 1932 Persons -2.217,353 1932 - 2.709430

nP

556 556 16.1%

1.137.755-513%

1,384.555-51.1%

Regional Plan Aatociation, Inc.. N. Y. C, "Information Bulletin No. 11," Jan. 30, 1933.