John Nightingale

The selection of appropriate intergreen times is an essential safety consideration for any traffic signal design. If the times chosen are too short, collisions or near-misses could result. At the other end of the scale, times that are too long impact on efficiency. Guidance states that the suitability of intergreen…

Pedestrian metrics are needed for traffic engineers to get insights into pedestrian behaviour.  Because pedestrian behaviour is very different from vehicle behaviour then, while we still need flow, speed, density and delay, we also have to understand how the counter-propagating flows, the less well-defined mixing of pedestrians arriving and leaving…

Bus RARR is a holistic public transport route assessment concept that takes a multi-faceted approach to enhance a bus route proposition in terms of safety and performance. This will consider traffic systems enhancements, bus priority technology, road layout, bus stop position, modal behaviours as well as data analysis in order…

Birmingham recently extended its tram network from Grand Central Station to Hagley Road. This section of tramway was typically shared with traffic with a number of traffic signal junctions and signalised crossings along the route. terminating at a new terminus site on Hagley Road. During the design process 4way Consulting…

WINNER : Overall Best Paper 2023 In 2021 National Highways completed the improvements to the A45 Chowns Mill roundabout following nearly 20 months of work. The scheme has delivered improved capacity, safety and walking/cycling routes. This paper explores the origins of the scheme, what other options were considered, the design…

Tom Siddall is a Principal Engineer at 4way Consulting and a regular Symposium presenter. Working on a wide variety of Traffic Signal projects Tom is in a particularly good position to provide insight into problems and propose interesting solutions. This year he will present a compendium of traffic signal issues:

WINNER: IHE Judges Special Award of Merit for a Paper and Presentation When undertaking an MBA in Senior Leaders Master’s Degree Apprenticeship Emily identified the biggest barrier faced by Staffordshire County Councils ITS team: With limited budget, struggling to maintain the assets to the required level, and to keep the…

This paper provides a full overview of the MAP refresh which TfL are looking to publish this summer. It will outline all of the significant updates, additions and revisions across the board from HTA, Microsim, local modelling (Including LinSig) and pedestrian modelling.

This paper provides an overview of the current position of the Transport Technology Forum’sDigital Controller Interface Standard (DCIS) project, its objectives, the rationale for why the project isbeing undertaken and its current position in a continually developing arena.The focus will be on the technical content of the suite of files…

Suku Phull discusses how real-time traffic and travel information delivered directly to drivers can revolutionise travel and offer potential for improving safety, managing congestion and its effect on the environment.