Approximate bug list for RoadMap
Desktop and rendering bugs:
Map data bugs:
- City search is broken:
The roadmap files include a table to convert a place into a county
subdivision. This table causes a lot of problems because places can span
across county subdivisions, with name clashes.
- The "address by ZIP" method does not work anymore:
Since the automatic selection of the map, because the file usdir.rdm does
not have yet any ZIP code location information (TBD).
This feature has been hidden from the user interface for now.
- Street address conflicts:
A few street address conflicts appears when building maps. Some seems to
be a TIGER map database problem. Others might be caused by the address
range format issue (see below). A few still need to be investigated.
NOTE: 3 of these addresses conflicts have been confirmed to be TIGER
database errors by the census bureau.
- Street numbers are not always numerical:
Some street numbers include letters, which is not well supported by
RoadMap: in such a case, roadmap generates a street number which is hoped
to be unique enough by converting the letter into a "number".
This is a design problem that is not going to be solved any time soon.
Current kludge is deemed good enough for the time being, until someone give
a practical case where this does not work.
- Some urban areas are missing:
For example: Woodland Hills (in Los Angeles county). This is a TIGER file
problem: the string "WOODLAND HILLS" never appears in the LA county files.
- The maps for the state of Hawaii do not use the NAD83 datum:
The offset can be significant (a few hundred feet), making these maps
basically unusable for navigation. The USGS bureau has announced that
their maps of Hawaii are being redone using the NAD83 datum, lets hope the
US Census Bureau will do the same. [As of 2007, I don't know whether this
is still true. -pgf]