The course is presented in the form of lectures by the instructor, reports by the students, supplementary reading, and, whenever practicable, field studies and analyses of actual traffic problems. The subjects covered are as follows: purposes of traffic control; accident statistics; accident records as a basis for accident prevention with special attention being paid to the use of spot maps, flow diagrams and collision diagrams in analysing traffic problems; legislation and administration as a means of regulating traffic; examination of applicants for drivers’ licenses; through and stop streets; critical approach speeds; traffic control at intersections by traffic beacons, traffic officers and traffic signals; studies of rotary and channellized intersections; highway and railway grade crossing elimination; traffic lanes, centerline markings; highway lighting; parking; education of all groups from the pre-school child to the adult; law enforcement, especially studying the problem of the drinking driver and the “accident repeater”; and traffic courts and violations bureaus.

Reference Material: This is composed of all available literature in the field of traffic control. A few of the organizations and institutions whose literature is used are as follows: American Association of State Highway Officials; American Automobile Association; American Road Builders’ Association; Bureau of Public Roads; Institute of Traffic Engineers; International Association of Chiefs of Police; Iowa State College; Metropolitan Life Insurance Company; Motor Vehicle Department of New Jersey and numerous other states; National Bureau of Casualty and Surety Underwriters; National Conference on Street and Highway Safety; National Safety Council; New Jersey Traffic Commission; Northwestern University Traffic Safety Institute; Portland Cement Association; Travelers Insurance Company; University of Illinois; University of Michigan; and University of Wisconsin.

CE 30-1 Structures. Prerequisite, First Semester Phys 30.

This course forms a transition between the previous courses of mechanics (statics) and strength of materials and the course in structures CE 30-2 given to the senior civil students. It treats of a more rounded and complete study of reaction and internal stresses in roof trusses and statically determinate bridges by both analytical and graphical methods. Special emphasis is placed upon the construction and use of influence lines. A short time is devoted to the approximate solution of lateral bracing and portals.

Text: Sutherland and Bowman “Structural Theory”, 2nd Ed.

CE 30-2 Structures. Prerequisites, CE 30-1, complete course. Phys 30.

The work of this course is divided between a theoretical study of statically indeterminate structures and the design of a variety of small structures. A thorough theoretical study is made of the deflection of beams and trusses and of the methods of least work, slope deflection, moment distribution, and the column analogy. Secondary stresses, space framework and wind stresses in buildings receive their proportion of attention. Throughout the work in theory those structures that are to be later designed and detailed are used for class problems, thereby making a close tie between the theory and design and eliminating an unnecessary amount of duplication in arithmetical calculations. Problems are given in the design of, and complete preparation of plans for roof trusses, buildings, foundations, abutments, retaining walls, trestles, trusses, girders, and frames of concrete, steel, and wood, with a study of timber, riveted, and welded framing. Highway loadings are used in preference to railroad loadings in order to simplify computations. Particular emphasis is placed upon orderly and complete computations, standard and practical considerations of design and detail, and thoroughness and neatness in drafting. Given to senior students in civil engineering.

Texts: Sutherland and Bowman, “Structural Theory, Second Edition”; Caughey, “Reinforced Concrete”; Fuller & Kerekes, “Analysis & Design of Steel Structures”; A. I. S. C., “Steel Construction Handbook”. Certain reference books from a department list to be read during the summer preceding the taking of the course.

CE 30 Structures.

Courses CE 30-1 and CE 30-2 will be combined in one senior course in 1940-41 and later years.