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<div class=Section1>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'>The conventional way of handling Bus Stops in the public
transport industry is to have a node for each individual point at which one can
get on a vehicle, so if there are two bus stops on opposite sides of the road
then they are represented as two nodes. If there are three bays in a row on one
side of the road then they are represented a 3 nodes in a row. Every Bus Stop
in the <st1:country-region w:st="on"><st1:place w:st="on">UK</st1:place></st1:country-region>
has a unique code, and this is sometimes printed on the bus stop itself.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'>In the EU standards they are called ‘Stop
Points’ (rather than Bus Stops) so they can cover buses, tram, rail,
ferry planes etc.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'>In railway stations there is a Stop Point for each
Platform (and each bay in a bus station, each Gate for an Airport and each quay
in a Ferry terminal).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'>Groups of local Stop Points (as they are called) are
then arranged into Stop Areas where they are very close to each other.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'>These Stop Points are not within the road layer
because Stop Points are a distinct dataset managed separately; they are then
associated with a street, sometimes using the Street Name and sometimes based
on proximity.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'>I recommend that we use ‘Bus Stop’ and ‘Stop
Point’ for this low-level purpose and construct entities as we need them.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'>The database of all these points in the <st1:country-region
w:st="on"><st1:place w:st="on">UK</st1:place></st1:country-region> is called ‘NaPTAN’
(standing for ‘National Public Transport Access Nodes’), there are
about 350,000 of them, and keen people can find additional information here:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><a href="http://www.naptan.org.uk/">http://www.naptan.org.uk/</a><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'>A new CEN standard is in the process of being
ratified, called IFOPT which can be used for describe much more complex
transport interchanges, such as major airports and railways stations, detailing
every corridor, lift, check-in desk escalator etc. CEN standards are used
throughout the EU and beyond.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><a href="http://www.naptan.org.uk/ifopt/">http://www.naptan.org.uk/ifopt/</a><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'>There is also a modelling standard for public
transport in general published by CEN called transmodel which covers the modelling
in general and is used behind most professional transport products used in <st1:place
w:st="on">Europe</st1:place>.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><a href="http://www.transmodel.org/">www.transmodel.org</a><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'>Of course, I am not proposing that we ‘implement’
all of the above, but where we choose modelling approaches and terms for
entities it would be sensible to choose the same names.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'>Regards,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'>Peter <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Tahoma><span lang=EN-GB style='font-size:
10.0pt;font-family:Tahoma'><o:p> </o:p></span></font></p>
<p class=MsoBodyText><font size=1 face=Tahoma><span lang=EN-GB
style='font-size:9.0pt;line-height:120%'><o:p> </o:p></span></font></p>
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