"communication:emergency_services"=>"yes","communication:mobile_phone"=>"yes","communication:radio"=>"yes","sources"=>"survey;https://bezoekerscentrum.rijkswaterstaat.nl/SchipholAmsterdamAlmere/news/zendmast-op-gaasperdammertunnel","tower:construction"=>"lattice","tower:type"=>"communication"
"material"=>"metal","tower:construction"=>"freestanding","tower:type"=>"lighting"