The Effect of the No-Passing Zone Sign on "Passing" Accidents, 1963

The No Passing Zone sign (Wl0-4) was designed in 1958 for the purpose of informing the driver contemplating a passing maneuver of hazardous sight conditions ahead. This warning sign, of pennent shape design, was placed on the left side of the road so as to be more conspicuous to the intended driver. During the two year period 1959-1960, the Wl0-4 signs were erected throughout the Iowa Primary Road System.

An Evaluation of the Calderon Test, HR-80, 1963

As a result of Chang's studies, Calderon's developments, and the need for a new test procedure to determine specific physical properties of an asphalt concrete, the Iowa Highway Research Board sponsored a research project to investigate the correlation of results of the Calderon Test with the Iowa Stability Test and the Marshall and Hveem stability tests using Iowa Type A asphaltic concrete. The project was assigned to the Bituminous. Research Laboratory of Iowa State University as Project HR 80, the. Iowa Highway Research Board, and Project 442-S of the Engineering Experiment Station.

[4 lettres autographes signées de Jules Barbier à Henri Heugel, 1887]

13 janvier : Au sujet du "Lion amoureux" : "N'y a-t-il donc plus que moi qui apprécie cette admirable langue?". - 15 février : au sujet de ses embarras financiers. - 12 mai 1887 : regrette de ne pouvoir se rendre à un dîner. - 16 novembre : Au sujet de sa canditature subordonée à la retraite éventuelle de Carvalho

Säveleitä 1887: 1-7 Suomalainen Soitannollinen Kuukauslehti, 1. vsk. : Toim. P.J. Hannikainen - 1

Jyväskylä 1887