https://www.openstreetmap.org/export#map=9/61.9247/-6.6632
curl 'http://overpass-api.de/api/map?bbox=-9.855,60.759,-2.549,63.005' -v > foroyar-overpass.xml
$ grep 'traffic_signals' -C 1 foroyar-overpass.xml
<node id="32946858" lat="62.0119345" lon="-6.7708592" version="5" timestamp="2013-02-17T10:45:55Z" changeset="15061709" uid="57645" user="KartoGrapHiti">
<tag k="highway" v="traffic_signals"/>
</node>
--
<node id="33252249" lat="62.0095743" lon="-6.7792001" version="4" timestamp="2013-02-17T10:46:01Z" changeset="15061709" uid="57645" user="KartoGrapHiti">
<tag k="highway" v="traffic_signals"/>
</node>
--
<node id="326207864" lat="62.0114309" lon="-6.7739571" version="4" timestamp="2009-12-08T12:08:28Z" changeset="3324303" uid="70283" user="LiFo">
<tag k="highway" v="traffic_signals"/>
</node>
--
<node id="395497855" lat="62.2978473" lon="-6.5273925" version="5" timestamp="2009-11-17T14:32:32Z" changeset="3141490" uid="70283" user="LiFo">
<tag k="highway" v="traffic_signals"/>
</node>