[OSM-talk] Dry-weather roads

[Alex Mauer]

Jo wrote:
> Steve Hill schreef:
>> On Wed, 2 Apr 2008, Iván Sánchez Ortega wrote:
>>
>>> "water=tidal" and "water=seasonal", then??
>> Sounds good to me, possibly with an optional qualifier tag such as:
>>
>> water:tidal:height=4    (flooded by tides > 4m above datum)
>> water:seasonal:dates=09/01-03/31    (flooded September 1 - March 31)
> If you're going to specify dates, maybe consider to use an ISO format 
> like 2008-09-01. This would look a bit odd without a year, but 09/01 is 
> ambiguous.

ISO 8601 gives a method for specifying a time interval: 
http://en.wikipedia.org/wiki/ISO_8601#Time_intervals

Discussion of a method for specifying day and month only here: 
http://en.wikipedia.org/wiki/User_talk:Omegatron/Date_formatting#Day-month

-Alex Mauer "hawke"