Final_Exam_Review_Outline - The Pennsylvania State...

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Unformatted text preview: The Pennsylvania State University The Pennsylvania State University Department of Civil and Environmental Engineering Review Outline for Final Exam CE 321 Spring 2009 CE 321: Highway Engineering Spring 2009 Material Prior to Mid­Term 2 Material Prior to Mid­Term 2 Comparison between theoretical and practical stopping distance; equations 2.44­2.48 (P. 35­ 40) Issues raised about safety in, “Two harmful myths and a thesis” The myths Roads built to design standards are safe Roads don’t cause crashes, humans do Example crash with multiple contributing factors Section 4.2 Material Prior to Mid­Term 2 Material Prior to Mid­Term 2 Traffic stream parameters and models – shockwave analysis Know basic concepts Know how to do computations Queuing Theory – applications of D/D/1 queuing Time varying demand Traffic signal applications Concept of capacity – definition and measurement Freeways Traffic signals c= (g/C) s CAPACITY – Maximum number of vehicles CAPACITY that can be reasonably expected to pass a point or section of road under prevailing road traffic and environmental conditions Material After Mid­Term 2 Material After Mid­Term 2 Traffic signal terminology – “it’s not a light it’s a signal” Saturation flow model as derived in class Working through signal timing 9 steps as in examples from class Importance of accommodating pedestrians Traffic Analysis in Support of Traffic Analysis in Support of Transportation Planning Traveler decisionmaking (Figure 8.1) Steps in analysis process (Figure 8.3) Trip generation method (regression) Mode choice (logit model) and applications Traffic assignment Method User equilibrium assumptions Example calculations “Best wishes to all of you on all your exams and final assignments” – Dr. J ...
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