On Wed, Nov 25, 2009 at 3:05 PM, Karl <[email protected]> wrote: > What is the easiest way when collecting data in the car to get the > biggest area in, in the least amount of time? > > I'm working on mapping the following area. > > http://www.openstreetmap.org/?lat=53.29474&lon=-3.73292&zoom=15&layers=B000FTF > > I've done a very small piece of work on the south side of the A547, if > the whether is nice, after my visit tomorrow, I will return with my bike > on Saturday, and collect more data.
Hi Karl, I've found that 'fastest now' is seldom actually 'fastest over all'. Going with a grid pattern has left me with too many missed streets and required return trips to pick up stragglers. Right-hand rule works well (for me, driving on the right hand side) when combined with a strict set of boundaries. Set a hard limit for your survey area and never cross them. Follow the right-hand rule until you exhaust the area. Check your breadcrumb trail to make sure that you don't miss any islands that evade your right-hand rule. I like to keep each survey boundary to an area I can cover in 20 to 30 minutes. Then move to the next one. Survey areas with obvious hard boundaries work best; third residential street in from the motorway = not so good, secondary street = better. And never bypass a dead-end street to come back and map it later. Get it now. Have fun! How are you taking notes while you drive? Co-pilot? voice recorder? _______________________________________________ newbies mailing list [email protected] http://lists.openstreetmap.org/listinfo/newbies
