\\\\ TRANSPORTATION ENGINEERING First Semester School Year 2018-2019 June 11-15 Syllabus presentation June 11-12, June 15 holidays June 18-22 Characteristics and components of transportation system June 25-29 Transportation problems Congestion Unreliability July 2-6 Transportation network problem solving Dijkstra's Algorithm July 9-13 PRELIMINARY EXAMINATION ***************************************************************** ANNOUNCEMENT
Goemans, M. (2015). Linear programming http://math.mit.edu/~goemans/18310S15/lpnotes310.pdf
Reference Xia, A. (2016). MIT 6.854 Spring 2016 Lecture 10 Introduction to Linear Programming https://www.youtube.com/watch?v=T1BuzVLfipY *************************************************************************** First Semester School Year 2017-2018 June 13- 16 Presentation of syllabus June 20- 23 Transportation system concepts, driving factors, dimensions, characterization, phases, and modes of analysis; transportation system components June 27- 30 Urban transportation problems, transportation linear programming model; Dijkstra's algorithm on shortest path of given transportation routes July 4- 7 Linear programming solution graphical model to transportation system maximization problem; land use transportation interaction, overview of transportation and land use interaction, effects of transportation on land development, transportation role in land use, new approaches to development, neo-traditional design, cluster development, and transfer or purchase of development rights July 11- 14 Design of surfaces and guideways, categories of highway pavements: rigid and flexible; components of pavements: subgrade, subbase, base, surface or wearing course;highway design considerations: structural designs (geometric design and design thickness) and mix designs; thickness of gravel road subjected to wheel load, sight distances, and concrete mix proportions July 18- 21 Refresher lesson on highway geometric design: stopping sight distance, braking distance, perception reaction distance, passing sight distance, decision sight distance; horizontal curve elements, middle ordinate, external distance, and stopping sight distance of horizontal curve; banking of highway curve July 25- 28 Problem solving involving derivation of cosine of half of the central angle of simple curve (in horizontal alignment) in terms of the radius of the simple curve and the middle ordinate, and derivation of the cosine of half of the central angle of the simple curve (in horizontal alignment) in terms of the radius of the simple curve and the external distance; flexible (including low cost road pavements) and rigid pavements specifications, materials, equipment for, and methods of construction August 1-4 Design of flexible pavements, design of rigid pavement, resilient modulus, CBR, relationship between resilient modulus and CBR, equivalent single axle load computation, design lane factor, growth factor, first year annual average daily traffic, number of axles, load equivalency factor, Westergaard equations, maximum stress at bottom of slab directly under the load and applied at the edge and in a direction parallel to the edge, maximum tensile stress at the bottom of the slab directly under the load applied at interior of the slab, loading conditions, modulus of subgrade reaction (subgrade modulus), modulus of elasticity of concrete, Poisson ratio for concrete August 8- 11( Lessons review, refresher, assessment) August 15-18 Mitigation of environmental impacts of transportation projects September 5-8 Traffic analysis techniques, traffic flow, pedestrian, vehicle flow and motion studies, volume studies, spot speed studies, travel time and delay studies, parking studies, elevator traffic studies, security traffic studies; AADT, ADT, PHV, VMT, VC; histogram, summary sheets, frequency distribution, cumulative frequency distribution (%), tables and maps; transportation study location, time, and duration;major control counts, minor control counts; Traffic speed mean, mode, median, range, ith percentile, and standard deviation and other statistics; Transportation studies methods; manual, automatic speed and volume studies; road detector, radar (signal ran), computerized electronic devices September 12-15 Traffic flow, vehicle, pedestrian flow and motion studies, speed, pulse detection, presence detection; freeway capacity and level of service (LOS); LOS A, B, C, D, E, F; product of density and speed equals the traffic flow, traffic flow model, density, service measure September 19-22 Two- lane highway capacity and level of service (LOS)A,B,C,D,E; services measures for Class I, II, III; Characteristics, ATS, PTSF, PFFS, two lane highway basic conditions; softwares, systems, programs in transportation engineering September 26-29 More on design of pavement, spacing of expansion joints, spacing of contraction joints; dowels, tie bars, longitudinal joint, construction joint, transverse joint; coefficient of thermal expansion of concrete per degree centigrade, change in temperature, dimension of the joint, filler, sealer; unit mass of concrete, allowable tensile stress of concrete, coefficient of friction for concrete in contraction on top of underlying material upon where the frictional force is generated More on geometric design, design of sag vertical curve where SSD< length of curve and where SSD> length of curve; example problem solving in designing sag vertical curve; design of crest vertical curve where SSD< length of curve and SSD > length of curve, design speed, algebraic difference in grades, problem solving in designing crest vertical curve, acceleration, perception reaction time October 3-6 Width and allowances of curves for Case I one lane one way operation with no passing of vehicle, for Case II one lane one way operation which provides for passing stalled vehicle, and for Case III two lane operation one or two way; design width of curve for each case I, II, III and radius of inner edge of pavement as well as each type of design traffic condition on page 247 Traffic & Highway Engineering by Garber and Hoel; C++ and Python applicable for running programs as applicable to transportation engineering Traffic control, traffic control systems, devices, layout and persons; traffic control hierarchy, elimination control, engineering control, administrative control, Personal Protective Equipment Review SUPPLEMENTAL COURSE IN MONTH OF SEPTEMBER Supplemental Course 1: Highway drainage design, example items on design of highway drainage channel ********************************************************************** Glossary of Terms
Reference Arizona Department of Transportation. (n.d.). Glossary of terms. https://www.azdot.gov/about/historic-roads/related-resources/glossary-of-terms Michigan Department of Transportation. (2016).MDOT road terms and definitions. http://www.michigan.gov/mdot/0,4616,7-151-9623_11154_39107-131251--,00.html Texas Department of Transportation. (2017).Highway designations glossary. http://www.txdot.gov/inside-txdot/division/transportation-planning/highway-designation/glossary.html Arterial street -city street serving the freeway and expressway Expressway -type of highway with partial limited access from adjacent and parallel road Freeway -access controlled divided highway designated for unimpeded movement of large volume of traffic with characteristics which include controlled access through the use of interchanges, and use of underpass or overpass at intersection Highway -paved or improved road which includes the entire area within the right of way to allow travel Interchange – junction of freeway and another road ACRONYMS Reference: Garber, N. & Hoel, L. (2002). Traffic and Highway Engineering. California: Bill Stenquist. AADT - Average Annual Daily Traffic -average of 24-hr counts collected every day in the year ADT- Average Daily Traffic -average of 24-hr counts collected over a number of days greater than 1 but less than a year PHV- Peak hour Volume -maximum number of vehicles that pass a point on a highway during a period of 60 consecutive minutes VC- Vehicle Classification (concerned with recording of volume with respect to type of vehicle) VMT- Vehicle Miles of Travel -measure of travel along a section of road -product of traffic volume (average weekly volume or ADT) and length of roadway (in miles) |
Learning material for topic on road drainage and maintenance
Utah Ltap. (2011). The importance of road drainage. https://www.youtube.com/watch?v=NgEgZ2Pv4kw *********************************************************
More on Suggested Readings and Videos https://community.dur.ac.uk/~des0www4/cal/roads/pavdes/thicknes.html FAO Corporate document repository. (nd). Chapter 3: road design. http://www.fao.org/docrep/006/t0099e/T0099e03.htm Jon Morris.(2014). Transportation engineering project-“The road to your future.” https://www.youtube.com/watch?v=v6rLdAFP6rk Bridge Engineering Today
and in the Past by S. Tabon Computer applications have been integrated in transportation engineering. In 1985, Michael Baker Jr Inc (Troitsky, 1994) developed the system Bridge Automated Design and Drafting (BRADD). After changes and updating of the system, BRADD-2 came as an integrated software that combines and automates the design, analysis and drafting steps of certain types of high way bridges. According to Campbell( 1990), BRADD-2 is automated design and drafting of single span bridges up to 200 feet (around 61 meters). In 1986 BDS (Bridge Design System) planning and development began under AASHTO (American Association of State Highway and Transportation Officials) by the pooling of resources of the AASHTO member departments, to produce acceptable computer products with unique computer equipment. The BDS was expected to be handling analysis and design to permit modeling of longer and more complex structures. In 2007, a version of TxDOT Bridge Geometry System (BGS) was released. It was developed from a version of TxDOT Roadway Design System(TxDOT, 2017). This is said to be useful for bridge geometry design. The bridge project which can involve the use of acceptable software is to start with the initial stage of selecting the location, scheme and bridge system. The use of computer at this phase of the project is a growing development. The use of the computers at the second phase of the project is necessary for calculations and establishment of final dimensions of the structure (Troitsky, 1994). (to be continued) References Campbell, J. (1990). Bridges on screen. Civil Engineering-ASCE, 60 (9), 62-64. Texas Department of Transportation.(2017).Engineering software. http://www.txdot.gov/inside-txdot/division/infor- mation-technology/engineering-software.html Troitsky, M. (1994). Planning and Design of Bridges. New York: John Wiley & Sons, Inc. |