Texas Transportation Researcher
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(;exos (;roltsportotiolt J(eseorelter PUBLISHED BY THE TEXAS TRANSPORTATION INSTITUTE. TEXAS A&M UNIVERSITY. COLLEGE STATION . TEXAS VOLUME 6 . NO.2 APRIL 1970 URBAN TRANSPORTATION PROBLEMS ARE APPRAISED AT A&M CONFERENCE Urban transportation problems and transportation in terms of establishing possible solutions were explored at the goals, objectives, and criteria; setting 12th annual Transportation Conference, standards for the allocation of re April 9-10, at Texas A&M University. sources; administering authority and Special attention was given to trans responsibility necessary for decision portation problems in the growing making; and regulating resource use. metropolitan areas of Texas. Carter, UMTA assistant administrator Carroll Carter of the U. S. Depart for public affairs, said public transpor ment of Transportation's Urban Mass tation has a new national priority, as Transportation Administration discussed evidenced by President Nixon's commit national plans and programs at the ment to a $10 billion, 12-year program opening-day luncheon. to build new transit systems with $3.1 The meeting, jointly sponsored by the billion available almost immediately. MacDonald Chair of Transportation and The federal official said the motoring public now understands that cities need the Texas Transportation Institute, at James Earl Rudder tracted industrial and governmental something more than highways and freeways-even if those improvements TEXAS AND THE NATION transportation representatives fro m MOURN THE LOSS OF throughout the nation. are buses and rapid transit systems that others would use. A&m PRESIDENT Program speakers included Texas Major General James Earl Rudder, A&M Engineering Dean Fred Benson, Speaking of "The City," Benson point President of the Texas A&M University discussing "The City;" TTI Director ed out that urban mass transportation System, died March 23 at the age of Charles J. Keese, "What Is Urban problems center around several facets. 59 after a long illness and surgery. Transportation?"; Eugene Maier, for Too many people live in too small an mer director of transportation and di area due to natural increasing popula He was acclaimed as a hero of the rector of public works at Houston, tion within the city and migration from D-Day invasion of France during World "Whose Responsibility?", and MacDon rural areas. Also, population segre War II when he led the Rangers up ald Chair Professor John P. Doyle, gates itself by affluence as suburban the cliffs of Normandy. "Regulation of Time and Space." and inner city. He felt the numerous political subdivisions of an urban area Rudder's colorful career included Texas State Highway Engineer J. C. need to cooperate and coordinate ac pre-war service as a football coach and Dingwall presided at the opening tivities in the direction of uniform deci teacher at Brady High School and luncheon. Dr. Horace R. Byers, Texas sions. He said also the attitudes and Tarleton State College in Stephenville. A&M academic vice president, wel desires of the people need to be influ After the war, he returned to Brady and comed participants and Dr. C. V. Woot enced by education and appropriate served as mayor from 1946 to 1952. an, TTI associate director, officially regulation and that the organized pres The following year he became vice opened the conference. sure groups and governmental agen president of Brady Aviation Company. A major portion of the conference cies must think in terms of the over-all Following graduation from Eden High was devoted to workshops which were impact of their interests on the city's School in 1927, Rudder enrolled at discussed by Robert 1. Hardin Jr. of U. character. Tarleton. In 1930 he transferred to S. Steel Corp., formerly vice president Keese commented that urban trans Texas A&M, where he studied industrial and executive director of Pittsburgh portation is so complex that it defies education and lettered in football. He Urban Transit Council, and Kenneth P. meaningful definition. To truly under was graduated in 1932. Tubbs, manager of the Dallas Cham stand it, he said it is necessary to un Rudder was appointed Texas land ber of Commerce's Transportation De derstand the purposes for which people, commissioner in 1955 and served three partment and president of the National goods and services move about and the years. Industrial Traffic League. other functions that the space allocated to transportation is expected to per In 1955, the Eden native also began Professor Doyle served as conference his eight-year command of "Texas' coordinator. form. Space for streets, for example, is used for parking, accessibility of serv Own" 90th Infantry Reserve Division. In opening the conference, Dr. Woot ices such as fire, police and garbage, After serving one and a half years an suggested taking a look at urban (Continued in column L page 12.) (Continued in column L page 2.) TEXAS TRANSPORTATION RESEARCHER Published q uarterly by the EFFECTIVE SURFACE COATINGS ARE FOUND Texas Transportation Institute Texas A&M University College Station, Texa s FOR FREEZE-THAW PROTECTION Second· class postage paid a t College Station, OF CONCRETE BRIDGE DECKS Texa s 77843, The protection against freeze-thaw tures, one applied after the other had TEXAS TRANSPORTATION INSTITUTE scaling afforded by penetrants, tars, thoroughly dried, covering a b out 40 Charles J. Keese, Director Charley V. Woota n, Associate Director and asphalts has been determined by square feet of surface per gallon gave Louis J. Horn, Research Editor Dr. Howard L. Furr, Leonard Ingram, the best results. and Gary Winegar in a phase of a COLLEGE OF ENGINEERING Old concrete that had already begun comprehensive study of bridge deck Fred J. Benson, Dea n to scale can be made somewhat more deterioration sponsored by the Texas durable with the linseed oil-kerosene Vo!. 6, Number 2 April, 1970 Highway Department in cooperation treatment, too. The treatment is not as with the Bureau of Public Roads. effective, however, on the lightly de Best coatings were (I) a mixture of teriorated concrete as it is on new con Eighth Right of Way Seminar equal parts of boiled linseed oil and crete. kerosene, (2) a mixture of equal parts The Eighth Annual Right of Way The linseed oil treatment had a more of tung oil and kerosene, and (3) hot Educational Refresher Seminar will be noticeable benefit when applied to con boiled linseed oil. One patented prod held at Texas A&M University on crete that had dried out thoroughly. uct sold under the name Thompson's August 5, 6, and 7, 1970. It is spon Water Seal performed well in some Of all treatments tested, properly en sored by Region 2 of the American tests but it was not as consistently a trained air was the most beneficial. Right of Way Association and the Texas good performer as the linseed and Concrete specimens with 5% entrained Transportation Institute. About 225 rep tung oils. Tar and asphalt coatings a ir had not scaled to any serious con resentatives of telephone, pipeline, were penetrated by the salt water; and dition at 300 freeze-thaw cycles when powerline, railroad, highway, and other the concrete surface, hidden by the tests ended, even when specimens had agencies involved in acquisition of coatings, was deteriorated in freeze no surface treatment. Surface treat rights of way are expected for the ses thaw action. ment added only slightly to the dura sions. Dr. C. V. Wootan, the associate bility of the air entrained concrete. director of TTl and head of its trans Reinforced concrete bridge decks are portation economics division, and Ory sometimes damaged by mechanical No surface treatment used in the test G . Poret, chief assistant, Register of and chemical action of water when it successfully sealed cracks to prevent State Land, Louisiana State Land Office, penetrates the concrete. The damage scaling in the crack area. will be in charge. occurs when the water freezes and Skid resistance was reduced by all when it carries corrosive compounds surface treatments of the penetrating TEXAS AND THE NATION MOURN- to the reinforcing steel. The damage type, but the linseed oil-kerosene treat (Continued from column 3, page 1.) is in the form of surface scaling due to ed surface was the least affected of all. as vice president, Rudder was named freeze-thaw action, and spalling due, president of Texas A&M in July, 1959, at least in some measure, to corrosion ANGLE IMPACT IS STUDIED IN and president of the Texas A&M Uni of the top mat of reinforcing steel. Re FURTHER ATTENUATION versity System in September, 1965. peated cycles of freeze-thaw tempera EXPERIMENT:A TION tures gradually erode the surface leav His decade of leadership at Texas Studies of field adaptation of impact ing rough surfaces, and corrosion of the A&M was a period of growth, change, attenuation systems are continuing un steel causes large areas of concrete to and diversification. der supervision of Dr. T. J. Hirsch. The burst out leaving the steel exposed for work is under sponsorship of the Texas further and more serious deterioration. Rudder was a member of more than Highway Department and the Bureau of 30 professional, honorary, and military Asphaltic surface sealing and surfac Public Roads and will determine reac organizations. His military decorations ing has not always provided the neces tion of the impact attenuation systems included the Distinguished Service sary protection of the concrete against designed for specific field locations to Cross, Legion of Merit, Silver Star, these actions. Salt water ponded on angle impact. Bronze Star with Oak Leaf Cluster, top of concrete sealed with an MC-O The most suitable design configura Purple Heart with Oak Leaf Cluster, primer and Ampet AC-5 cover pene tion for the attenuation system field French Legion of Honor with Croix de trated the coating and scaling pro locations selected will be determined Guerre and Palm, and the Belgian Or gressed unseen under the asphalt in fhrough tests and through the research der of Leopold wifh Croix de Guerre freeze-thaw tests in the laboratory.