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Centre for Traffic Research (CTR)

The Centre for Traffic Research (CTR) is a Swedish competence centre that initiates, coordinates and conducts research and development in modeling and analysis of traffic processes.

CTR News

An Automated Process for Identification of Bottlenecks in the Traffic System Using Large Data Sets

Traffic breakdowns are frequently observed phenomena on roads in larger cities, especially during peak hours. Locations along a road stretch with frequently observed breakdowns are known as recurrent ...

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Shared e-scooter micromobility: review of use patterns, perceptions and environmental impacts

Within the CTR project "Modelling of micromobility (M3)" Erik Jenelius and Hugo Badia have published a new paper in Transport Reviews.

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CTR Motorvägsstyrning
Photo: Sten-Åke Stenberg/

The impact of varying speed limits on traffic conditions – A case study on the E4 around Södertälje

Variable speed limits, if applied correctly, can improve the traffic conditions at locations that are experiencing frequent problems with congestion, inefficient traffic flows and queue propagation. D...

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Guillermo Pérez Castro
Guillermo Pérez Castro in front of the poster "A power-based approach to model the impact of gradient in bicycle traffic simulation" at the TRB conference 2023

A power-based approach to model the impact of gradient in bicycle traffic simulation

To simulate bicycle traffic accurately, it is essential to capture how bicyclists react to features of the infrastructure such as the longitudinal gradient of a bicycle path.

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Centre for Traffic Research (CTR)

KTH Royal Institute of Technology
Teknikringen 10
SE-100 44 Stockholm