dual-use line
21Dual Spires — Psych episode …
22Dual loop — This article refers to the electrical circuit as used in burglar alarms. Several other uses for the term Dual loop may also exist. Dual loop is a method of electrical circuit termination used in electronic security applications, particularly… …
23LACMTA Expo Line — The Metro Expo Line of the Los Angeles County Metro Rail is a light rail line currently under construction in Los Angeles County, California, USA, which will run from Downtown Los Angeles to Culver City and eventually to Santa Monica. Its route… …
24Silver Line (MBTA) — Infobox Bus transit name = MBTA Silver Line logo size = 200 image size = 350 image caption = MBTA Neoplan AN460LFs in Silver Line duty. The bus on the left is an AN460LF CNG on the Washington Street line, and the bus on the right is an AN460LF… …
25North London Line — A Class 378 Capitalstar at Canonbury in June 2010 Overview Type Commuter rail, Suburban rail, Freight …
26IRT Flushing Line — The 7 and 7 Express trains serve the entire IRT Flushing Line at all times Overview Type Rapid transit …
27New Haven Line —      New Haven Line New Haven bound M8s pass through Port Chester, NY Overview …
28High-quality dual carriageway — A High quality dual carriageway (HQDC) is a category of road in the Republic of Ireland. It is an all purpose dual carriageway road type of motorway standard, but without the route section being classified as motorway or having motorway… …
29Silver Line (Los Angeles Metro) — Metro Silver Line      Los Angeles Metro rapid transit line …
30Digital subscriber line — DSL redirects here. For other uses, see DSL (disambiguation). DSL technologies Standard ADSL ANSI T1.413 Issue 2 ITU G.992.1 (G.DMT) ITU G.992.2 (G.Lite) ADSL2 ITU G.992.3 ITU G.992.4 ITU G.992.3 Annex J ITU G.992.3 Annex L ADSL2+ …
