CIVIL ENGINEERING / 119 Prerequisite: CE 512. Currently used mathematical models of traffic planning and urban activity. Trip generation, distribution and assignment. Modal split. CE 613-TRAFFIC ENGINEERING OPERATIONS AND ANALYSIS. 4 credits Prerequisite: CE 513 or consent of instructor. Operational techniques used to optimize traffic flow including traffic control systems. Maintenance operations. Free- way operations and control. Intersection channelization. CE 614-HIGHWAY PLANNING DECISIONS. 3 credits Highway finance and administration, highway needs analysis, economics of highway location, highway planning studies. CE 616-HIGHWAY SAFETY ANALYSIS. 3 credits Prerequisite: CE 513. Accident reporting systems, statistics and characteristics of accidents, accident reconstruction and investigation procedures, factors involved In highway accidents, accident reduction and effects minimization. CE 617-AIRPORT PLANNING AND OPERATIONS. 3 credits Prerequisite: CE 515 or consent of instructor. Airport configuration, ground movements, baggage movements, parking, aircraft delay analysis, airport access, simulation of airport operations. CE 618-FREEWAY DESIGN AND OPERATIONS. 4 credits Prerequisite: CE 513. Operational characteristics of freeway systems. Geometric design configurations and effect on operation. Advanced analysis techniques. Free- way surveillance and control. CE 619-TRAFFIC FLOW THEORY. 4 credits Prerequisite: CE 513 or consent of instructor. Macroscopic and microscopic traffic flow models, simulation, traffic system and network models, freeway corridor models. CE 620-GROUNDWATER HYDRAULICS. 3 credits Prerequisite: CE 521. Laminar flow through porous isotropic and anisotropic media. Two-dimensional flow problems and potential theory methods. Three-dimen- sional flow. Multiple phase flow. Salt water intrusion. Dispersion. Turbulent ground- water flow. Transient flow. CE 622-OPEN-CHANNEL HYDRAULICS 2. 3 credits Prerequisite: CE 522. Unsteady open-channel flow. Equation of motion. Method of characteristics. Surge formation. Dam-break problem. Flood waves. Rating curves and expressions for discharge. CE 623-SEDIMENT TRANSPORT. 3 credits Prerequisite: CE 522. Alluvial water courses. Critical shear stress and stable channels. Modes of sediment motion and bed formation. Suspended load. Bed-load formulas and entrainment at the bed. Transport in closed conduits. Natural rivers. Meanders. CE 624-HYDRAULIC MODELS AND ANALOGS. 3 credits Prerequisite: CE 420. Principles of hydraulic similitude. Special model laws and their limitations. Dimensional analysis. Distorted models with fixed or movable bed. Calibration of models; interpretation of model results. Electrical and laminar flow analogs. Applications. CE 625-HYDRAULIC MEASUREMENTS IN LABORATORY AND FIELD. 3 credits Prerequisite: CE 420. Modern hydraulic laboratory. Flumes and test rigs. Ad- vanced methods for measurement of head, velocity, discharge, sediment trans- port. Auxiliary electronic equipment.