In the UK we use a formulae to develop the peak.
Basically the data is in 15 minute chunks, and we analyse for 1 1/2 hours we then multiply as follows
00:00 fLOW IS 0
00:15 INTERPOLATED BETWEEN 00:00 AND 00:30
00:30 0.75 HOURLY FLOW
00:45 1.125 HOURLY FLOW
01:00 0.75 hourly flow
01:15...
It was, I understand originally developed at TRL (Transport Research Laboratory) however you would think it is documented somewhere available on the internet. I have got hold of the inception paper written about MOVA (1986) but still no algorithm!
Thanks for your reply, I have looked at this site beforte, however this link lead me to a useful page on MOVA but unfortunately still no algorithm or explanation of how it works, ie drop off sat flows etc.
Thanks
Ian
I am about to start a research project comparing MOVA with other control philosophies, however I cannot get hold of the actual algorithm, anyone know where it is?
Thanks
Ian
In the UK we use a factor 1.125 to account for a localised variation in the flow. In the computer junction software that we use (arcady for roundabouts and Picady for priority junctions) it is already accounted for, so for manual cals the flows are alwways factored by 1.125 before you start.
HTH
I believe some research was done in the UK, in the South West from memory, where signals from mobile phones were used to develop o/d matrices. I may have read about in in Traffic Technology international, an excellent free magazine for transport professionals. The research provided very...
Roundabouts are used extensively in the UK to great effect, the normal hierarchy of delay is
priority junction (give way)
signalised junction (traffic lights)
roundabout
signalised roundabout
However there are grey areas between the uses depending upon the size and geomtery.
The upshot is...
