65299 - Road Infrastructures Design

Course Unit Page

  • Teacher Valeria Vignali

  • Credits 8

  • SSD ICAR/04

  • Teaching Mode Traditional lectures

  • Language Italian

  • Campus of Bologna

  • Degree Programme Single cycle degree programme (LMCU) in Architecture and Building Engineering (cod. 0940)

  • Teaching resources on Virtuale

  • Course Timetable from Sep 20, 2021 to Dec 21, 2021


This teaching activity contributes to the achievement of the Sustainable Development Goals of the UN 2030 Agenda.

Industry, innovation and infrastructure Sustainable cities

Academic Year 2021/2022

Learning outcomes

After completing the course, the student has basic knowledge of geometric components and regulations for the design of roads. He is able to organize an infrastructure project and to independently meet some practical applications: cost analysis, environmental integration, safety. He knows the fundamental elements of the pavements and related materials. Finally, is able to deal with issues related to the design, control and management of road pavements and earthworks for transport infrastructure.

Course contents

Road design

Road project design: fundamentals of road capacity, design flows, levels of service and cross section selection. Road geometry: cartographic support choice, plan alignment and circular and transition curves, vertical alignment, definition of the type sections, cross sections drawing and volume calculations. Works quantification and project cost estimating. Vehicle motion and stability on road curves. Road safety and restraint systems.

Retaining walls

Road embankments and cuts construction. Soil compaction and quality control. Stability analysis: calculation criteria and limit state method. Embankments construction. Earth pressures. Determination of earth pressure in special cases: cohesive soils, water pressure, layered soils and distributed surcharge load on the soil surface. Types of retaining walls. Construction schemes and phases.

Road pavements

Characterization of road materials (soil and aggregate mixtures, bituminous binders, bituminous mixtures). The volumetric mix design of bituminous mixtures. Road pavements materials. Road Pavements design. Geosynthetics. Structural and functional characteristics of pavements. Road pavement maintenance.

Roundabout and infrastructures for pedestrians and cyclists



- Giulio Dondi, Andrea Simone, Valeria Vignali, Claudio Lantieri. Costruzioni stradali: aspetti progettuali e costruttivi. - Ed. Hoepli

- Felice A. Santagata. Strade: teoria e tecnica delle costruzioni stradali. Ed. Pearson

Teaching methods

Lessons and team (2-3 students) works. A digital terrain model is assigned and the students design a small road project, also by CAD.

Assessment methods

Oral exam.

Teaching tools

Lectures will be given with ppt slides.

Office hours

See the website of Valeria Vignali