To Do - Des Moines-West Des Moines, IA

• Update June 22, 2012*

I have found that the exit numbers for the freeway along the north side of Des Moines is consistent with I-80, therefore changing the old format of how I grew up just knowing it as I-35, to I-80. If that remains an issue, please use discussion tab.

~the1who~

If you would like to help out in mapping this region, contact me to coordinate our efforts.

Please reference the Discussion Tab/Page before editing this page.

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Freeways

Major Highways

Minor Highways

Primary Streets

Miscellaneous

Map editing guidelines

(or: Let's Just Do This Once)

How to label and name roads

Please reference the following Wikis for editing in our area:

How to label and name roads

Map Label Legend

• For map viewing and navigation, it is critical to use the proper labeling of a road type. The Work Chart above gives a good representation of what you should see in Cartouche and the client, if you have your client's color scheme set to map editor.

Interstates/Major/Minor Highways

• road geometry matches aerials
• eliminate unnecessary junctions: other than where the city changes, or where ramps connect, get rid of 'em.
• lane directions correct & locked (one-way roads do not have center dividers)
• road type is correct
• primary road name first: "I-xx"/"US Hwy xx"/"State Hwy xx"
• alternate route numbers next;
• highway name (e.g., "Yankee Division Hwy") next
• street name if applicable (e.g., Andover St.) last
• check & correct connectivity between highway segments

Ramps

• geometry matches aerials
• directions correct & locked (one-way roads do not have center dividers)
• road type set to "ramps"
• street names should match existing signage; e.g.:
  • "Exit 20 / Boston / Brighton / Cambridge"
  • "to I-90 W / Worcester"
• when a ramp segment has no sign of its own (e.g., after two ramps merge), borrow from the names of the "upstream" ramps, which should be similar if not identical
• check & correct all connectivity among ramps & roads--critical for proper routing

Over/underpasses

• eliminate junctions connecting roads that should be at different levels
• when possible, make "0" the street level
• overpasses should have a positive level (unless they are at street level spanning a below-grade road)
• roads that are below street level, such as I-90 through Allston, should have a negative level, even when there are no roads crossing over them
• do not add junctions in order to change road levels mid-segment, unless unavoidable (e.g., A crosses over B, which crosses over C, which elsewhere crosses over A.)
• when changing a segment's level, check its full length for problems with using the new value

Wiki editing info can be found here. Sounds scary but it's easy Just watch this short video.