Create 006-street-addresses.md

Resolves openstates#21.

accepted/006-street-addresses.md

@@ -0,0 +1,55 @@
+# OSEP #6: Structured data for street addresses
+
+|                    |            |
+|--------------------|------------|
+| **Author(s)**      | @paulschreiber |
+| **Implementer(s)** | TODO |
+| **Status**         | Draft   |
+| **Draft PR(s)**    | https://github.com/openstates/enhancement-proposals/pull/18 |
+| **Approval PR(s)** | 
+| **Created**        | TODO |
+| **Updated**        | TODO |
+
+---
+
+## Abstract
+
+Open States provided currently provides a single field for address data. It would be beneficial to have separate street, city, state and zip code fields.
+
+Within the current `address` field, the information available, spacing and delimiters vary by state, making parsing difficult.
+
+## Specification
+
+### Data Model Changes
+
+- Under `contact` details, for both district and capitol offices, add the fields `street`, `city`, `state` and `zip`
+- For backwards compatibility, existing `address` field will be preserved (temporarily).
+
+### Scraping
+
+Data availability and format varies by state 
+* some states provide the data in separate fields
+* some states do not provide the state name
+* some states inconsistently uses state names and state abbreviations
+
+Observed cases can easily be parsed with regular expressions.
+
+## Rationale
+
+This would allow for easier searching, sorting, geocoding and other data uses.
+
+## Drawbacks
+
+- In the short term, duplicate data is stored.
+
+## Implementation Plan
+
+I will assist with updating scrapers to output the structured data.
+
+The address field will be a composite of the structured data (using format strings).
+
+Several team members, and hopefully some community members, will help to contribute updated committee scrapers.
+
+## Copyright
+
+This document has been placed in the public domain per the [Creative Commons CC0 1.0 Universal license.](https://creativecommons.org/publicdomain/zero/1.0/deed)