AM FM audio BBC black broadcast broadcasting channel communicate communication ether jazza listen listening Luxembourg mittelwelle mono NDR news old phono radio receive receiver receiving red retro sound speak stereo Strasbourg tune Tuner vintage voice volume WDR wireless World advice advising announcement blue colored colors coloured colours entrance-fees explore font information informing invitation inviting lettering letters message open opportune opportunity potential promoting promotion promotional sign signage suggestion suggestive text texture textures welcome white wording words alert automobiles cars closed dead-end end limited limited-access motor-vehicles no-thoroughfare no-through-road restricted restriction restrictions road roadway safety vehicles warning access-denied appropriate-behavior appropriate-behaviour communicating compound denied exceptions limitations limited-entry not-allowed not-permitted permission-denied police police-only prohibited prohibition regulations responsible rules signs warning-sign access armed authorities authority availability available control deployment equipment law law-&-order light National-Day naval navy on-duty on-the-job order patrols power presence river river-traffic secure security Singapore traffic-control weapons avoid be-careful below-ground cable care careful caution concern digging digging-dangers optical-fibre-cable risk risks risky stay-clear warned yellow behave directive entry-denied entry-prohibited no-access no-entry accessibility convenience convenient direction disability disabled gender gents indication indicator informative loo men men’s-toilets personal public public-convenience public-toilet rest-rooms sanitation toilet toilets wc wheelchair-access checkered checks mobile mobility motor-bike motor-cycle responsibility road-work symbols transport transportation travel vehicle satellite space telecom telephone