We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK


97% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > True Digital Control of interurban traffic netw...
View graph of relations

« Back

True Digital Control of interurban traffic networks

Research output: Contribution in Book/Report/ProceedingsConference contribution


Publication date1996
Host publicationInternational Federation of Automatic Control 13th Triennial World Congress
<mark>Original language</mark>English


Automatic control strategies exploiting the True Digital Control (TDC) approach to control system design are applied to a nonlinear Statistical Traffic Model (STM) of the Amsterdam ring road system. The adaptive Proportional-Integral-Plus (PIP) control system based on Non-Minimum State Space (NMSS) design methods utilises a recursively updated, linear approximation to the STM, which has also been shown to provide a good explanation of measured data from motorways in The Netherlands. Three main categories of control are considered in the paper: ramp metering, variable speed signs and variable message signs.