Material Detail

"Transportation Engineering Explained: Traffic Flow, Road Design, Transport Systems and Safety" is an open educational resource (OER) module authored by Prep4Uni.Online. It provides an in-depth analytical and operational treatment of the planning, geometric design, traffic stream dynamics, and operations of multimodal mobility networks.

The module covers core domains including macroscopic/microscopic traffic flow theory (Greenshields model, shockwave analysis, HCM Level of Service), highway geometric alignment (stopping sight distance, horizontal curve banking), pre-timed and adaptive signal control (Webster's formula, phase design), public transit network design (BRT, LRT, heavy rail metro), and emerging smart mobility technologies (ITS, connected and autonomous vehicles, transport decarbonization). Notable pedagogical assets include an interactive client-side Greenshields traffic flow canvas simulator, a systems engineering mass transit trade-off matrix, a fully worked macroscopic traffic stream and highway capacity calculation, and three rigorous tiers of review problems. Available online as an interactive module and permanently archived with a persistent DOI via Zenodo.

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