May 21: This Date in Los Angeles Transportation History

1923:  The Los Angeles County Board of Supervisors adopts a resolution calling for comprehensive highway study in the County.

San Gabriel Valley Highway Plan

One result is the County of Los Angeles Regional Plan of Highways, which produces two volumes of work before being discontinued:  Section 2-E, San Gabriel Valley, produced in 1929, and Section 4, Long Beach-Redondo Area, published in 1931.

1974:  Arthur D. Little, Inc., an internationally respected research firm, concludes that the Southern California Rapid Transit District‘s rapid transit plan for Los Angeles County could save the average driver $1,100 per year in his/her household budget.