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Diffstat (limited to 'docs/customising/geocoder.md')
| -rw-r--r-- | docs/customising/geocoder.md | 21 |
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diff --git a/docs/customising/geocoder.md b/docs/customising/geocoder.md index 4dc44b507..6e5e54c4c 100644 --- a/docs/customising/geocoder.md +++ b/docs/customising/geocoder.md @@ -30,6 +30,27 @@ a specific country or city. The options vary [depending on which geocoder you use]({{ "/customising/config/#geocoding_disambiguation" | relative_url }}). +If you're running a site in the UK and want junction lookup (e.g. "M5 junction +11a") then see the [Junction lookup](#junction-lookup) section below. + ## Detailed flow: location → map pin → drop-down menu  + +## Junction lookup + +If the site is going to be run in the UK and you'd like the ability to do +junction lookups, i.e. allow the user to search for "M60, Junction 2" and have +it geocode to the correct location, then you'll need to generate a junctions +database. + +{% highlight bash %} +$ mkdir ../data +$ wget https://www.whatdotheyknow.com/request/272238/response/675823/attach/2/Gazetteer%20All%20Mposts%20only.zip +$ unzip Gazetteer\ All\ Mposts\ only.zip +$ in2csv Gazetteer_All_Mposts_only.xlsx > markerposts.csv +$ bin/make-junctions-database markerposts.csv +{% endhighlight %} + +This will create a SQLite database at `../data/roads.sqlite`. If this is present +then it will be used by the postcode search to do a junction lookup. |