Fixed time v single stream MOVA control on a signalled rounabout.

In this case study of the Hobby Horse roundabout in Leicester, UK a comparison, in terms of average delay during morning and evening peak hours, ismade between full roundabout coordination using Fixed-Time, and adaptive control using single stream MOVA. Microsimulation software VISSIM is used as the platform for this comparison whilst LinSig and PCMOVA have been used to configure Fixed-Time and MOVA control, respectively. In this case themicrosimulation reveals that Fixed-Time is more effective than single stream MOVA at reducing delays. It is suggested that the increased benefits provided by Fixed-Time originate from the greater proportion of green time available to the approaches than is possible using single stream MOVA. This in turn allows Fixed-Time to offer greater capacity and therefore reducedelays.