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2023/24 Taught Postgraduate Module Catalogue

TRAN5241M Road Geometry and Infrastructure

15 creditsClass Size: 40

Module manager: Dr Narasimha (Chandra) Balijepalli

Taught: Semester 2 (Jan to Jun) View Timetable

Year running 2023/24

Pre-requisite qualifications

TRAN5072M or equivalent

Module replaces


This module is not approved as an Elective

Module summary

The module is designed to develop specialist skills required by transport engineers. In particular traffic signal engineers require an understanding of the concepts of saturation flow, how the queues build up and dissipate at junctions and the principles involved in designing signalised junctions. Transport engineers also require advanced understanding of the principles and methods to design complex intersections. The module is divided into two halves as such dealing with traffic signals and geometrical design of complex junctions.


To ensure that students are equipped with the theoretical understanding and practical skills needed for the design of safe and efficient highway links and junctions (including signalised), and that they understand the advantages and disadvantages of different solutions and their appropriateness in different circumstances in the UK and elsewhere.

To ensure that students have a sound understanding of the principles of traffic signal control as applied in the UK and elsewhere, and that they understand how it interacts with other control and advice systems. To ensure that they understand the behaviour of traffic in response to signals and the techniques used to model that behaviour.

Learning outcomes
Upon successful completion, students will understand the theory underpinning the design of: highway links; priority junctions; roundabouts; signalised junctions. They will have an understanding of the SCOOT system.

Skills outcomes
- Data analysis software experience/ skills.
- Drawing and sketching skills.
- Numerical competence.
- Understanding driver behaviour.


Link design: road capacity, horizontal alignment, vertical alignment, overtaking areas, climbing lanes.
Junction Design: priority junctions, roundabouts, Multi-level intersections, high speed weaving areas.
Principles of traffic control: saturation flow measurement and estimation; pcu values; delays at isolated junctions; Webster's method for optimising timings; multiple conflicts including early cut-off, late start; signal controlled pedestrian crossings; vehicle and pedestrian detectors; co-ordinated network control principles; current UTMC systems; signalised roundabouts; SCOOT.

Teaching methods

Delivery typeNumberLength hoursStudent hours
Computer Class14.004.00
Revision Class12.002.00
Private study hours128.00
Total Contact hours22.00
Total hours (100hr per 10 credits)150.00

Private study

The students will be expected to read a number of key texts and papers to underpin their knowledge.
The course assessment will involve a coursework based on the design of a signalised roundabout , plus an exam.

Opportunities for Formative Feedback

Feedback given through interaction during lectures and through performance in coursework.

Methods of assessment

Assessment typeNotes% of formal assessment
Computer ExercisePredicting the capacity of a Normal Roundabout25.00
Computer ExerciseDesign of a signalised roundabout25.00
Total percentage (Assessment Coursework)50.00

Normally resits will be assessed by the same methodology as the first attempt, unless otherwise stated

Exam typeExam duration% of formal assessment
Online Time-Limited assessment2 hr 00 mins50.00
Total percentage (Assessment Exams)50.00

Normally resits will be assessed by the same methodology as the first attempt, unless otherwise stated

Reading list

The reading list is available from the Library website

Last updated: 28/04/2023 14:56:45


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