Priority Junction Operation and Capacity Analysis

Symmons Madge Associates Ltd.
Belfast, Birmingham, Bristol, Cardiff, Dublin, Exeter, Glasgow, Slough, United Kingdom

Course Format: Classroom | E-learning | Virtual Class | Online/Live | On-site/In-house | Blended | Self-paced

Course Description:

'' The basic skills traffic engineers and planners need include understanding how junctions work, and how to assess how they will perform in practice. Traffic engineers and planners also need to be able to understand the limitations of such analyses. The most common way of assessing priority junctions and roundabouts is by using PICADY or ARCADY - industry-standard computer analysis packages. This course provides a basic understanding of how T-junctions, crossroads and roundabouts operate and are designed, including the principles of priority control on which the assessment methodology is based. It then shows delegates how these principles operate in PICADY and ARCADY. Going further than this, it allows delegates to discover from their own work during the course, how important it is to be accurate in specifying the input data, and what the consequences of inaccuracy may be.

Aims and Objectives:
The course aims to provide delegates with:

guidance on choosing the type of priority junction in different circumstances
an understanding of the advantages and disadvantages of each junction type, including safety issues
an introduction to DfT geometric layout standards
the basic information needed to design priority junctions
an understanding of how ARCADY and PICADY can be used to predict existing and future performance of priority-controlled junctions
Learning outcomes:
On completing the course delegates should:

understand how priority-controlled junctions and roundabouts operate
know the principles of selecting an appropriate form of priority control for different situations
know how the capacities of such junctions can be assessed
understand the main functions and facilities of PICADY and ARCADY
be able to prepare basic geometric and traffic input data for PICADY and ARCADY
understand the need for accuracy in preparing input data
be able to identify whether or not a chosen design will have sufficient capacity to cope with predicted traffic demand

Course Outline:

Introduction
Overview of course
Priority junction operation (Background; basic principles; forms of junction; advantages/disadvantages of each form)
Choosing the most appropriate form of junction in a given situation
Practical - individual work to select best solution for two scenarios, followed by group discussion
Factors affecting junction and roundabout capacity
Design procedures (assessing capacity; principles of design; information needed for design)
Predicting capacity of priority junctions PICADY overview; preparing input data; practical: investigating variability inherent in preparing geometric data; demonstration of running PICADY to show how input variability affects results; discussion
Predicting capacity of roundabouts ARCADY overview; preparing input data; practical: investigating variability inherent in preparing geometric data; demonstration of running PICADY to show how input variability affects results; discussion
Discussion and questions
Recap on course and pointers for further learning
...''

Elements of this syllabus are subject to change.

Phone:01446 775959

School Address/Venue(s):

Vale Forge
North Road
Cowbridge
Vale of Glamorgan
CF71 7DF
United Kingdom

Jobs & Resumes: Belfast, Birmingham, Bristol, Cardiff, Dublin, Exeter, Glasgow, Slough
Houses & Roommates: Belfast, Birmingham, Bristol, Cardiff, Dublin, Exeter, Glasgow, Slough
Travel Agencies: Belfast, Birmingham, Bristol, Dublin,

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