In article ,
says...
The original poster got it right with his use of the phrase "Runway ID",
because it is, in fact, an ID based on a number, as opposed to some type of
number.

What is the magnetic heading of Runway 5?

If someone is named "Fred", do you refer to them as "Zero Fred"?

The point is, we are dealing with a "name" which consists of a numeral, as
opposed to an actual number.

The runway is NAMED Runway 5. Why would you prepend a zero to a NAME?

Because we don't all live in the USA?

Google Earth to...
?xml version="1.0" encoding="UTF-8"?
kml xmlns="http://earth.google.com/kml/2.0"
Placemark
nameWoodburn/name
LookAt id="khLookAt539"
longitude173.8623092675428/longitude
latitude-41.51827447324778/latitude
range445.7915859883797/range
tilt59.74335566169054/tilt
heading85.78942805235496/heading
/LookAt
styleUrlroot://styleMaps#default+nicon=0x307+hicon=0x317/styleUrl
Point id="khPoint540"
coordinates173.8623092675428,-41.51827447324778,0/coordinates
/Point
/Placemark
/kml

?xml version="1.0" encoding="UTF-8"?
kml xmlns="http://earth.google.com/kml/2.0"
Placemark
nameKingsford Smith/name
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longitude151.1656777476775/longitude
latitude-33.9431305276927/latitude
range592.0090769603928/range
tilt56.07426755663099/tilt
heading73.71486602161265/heading
/LookAt
styleUrlroot://styles#default+icon=0x307/styleUrl
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coordinates151.1656777476775,-33.9431305276927,0/coordinates
/Point
/Placemark
/kml
?xml version="1.0" encoding="UTF-8"?
kml xmlns="http://earth.google.com/kml/2.0"
Placemark
nameHeathrow/name
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longitude-0.4800131261500971/longitude
latitude51.46439240514528/latitude
range572.7365322921153/range
tilt65.28356894139483/tilt
heading90.7134713139385/heading
/LookAt
styleUrlroot://styles#default+icon=0x307/styleUrl
Point
coordinates-0.4800131261500972,51.46439240514529,0/coordinates
/Point
/Placemark
/kml

?xml version="1.0" encoding="UTF-8"?
kml xmlns="http://earth.google.com/kml/2.0"
Placemark
nameParis/name
LookAt
longitude2.554618810077227/longitude
latitude48.9957715649475/latitude
range567.1602808722715/range
tilt55.61194273957288/tilt
heading86.94549055915485/heading
/LookAt
styleUrlroot://styles#default+icon=0x307/styleUrl
Point
coordinates2.554618810077227,48.9957715649475, 0/coordinates
/Point
/Placemark
/kml

--
Duncan