Three questions - how often do they update these markings? And what would park at line 25? And what determines the location of the marking?

A380 is canceled. Production ended. They will support any A380 in the field for its lifespan until all planes are retired. Reasons for failure: 1. Price tag to cover $25 bn US development costs was too high. Had to lower price to below break even and Airbus lost hundreds of millions on every plane. 2. Hub and Spoke did not materialize. Multihub strategies in the USA doomed the plane in the American market where a 757/737/A320 can fly hub to spoke or hub to hub. In Europe, Point to Point also emerged which erased the soul need for one large aircraft to trolley large passenger loads to the hub and then Spoke them out. 3. American carriers using point to point began embracing older smaller jets such as the MD-95/717 and MD-88 for short haul and 737/757/A320 for medium haul. Long haul in the USA was already covered by A340/747later A350. Super long haul high load was not feasible in the American market except to Asia/Australia, but the 747 already had that covered. 4. 9/11. There was a mass change in airline strategies in the wake of mass bankruptcies following the tragedy. $445 mn USA plane for 800 potential passengers and is a fuel hog? No thanks. 5. Embraer and Bombardier showed up at the right place, right time. As McDonell Douglas was bought by Boeing, many of its aircraft were becoming outdated and were too small. They suffered in the market in the Hub/Spoke model. But in MultiHub and Point to Point, they are the perfect replacement for small twin engine jets. No need for a super jumbo when you have a fleet of smaller planes going point to point. 6. CRITICAL PROBLEM: 40,000 airports in the world. Only 140 can handle regular daily service out of 400 that can even land the plane. That's 1% of worldwide airports can land it. 0.0035% of worldwide airports can service it daily. It would only work at Major Airports that are critical to a nation's air travel. Only 16 American airports as of this year support A380 in America. Wanna go somewhere else? Layover or connecting flight. And of these 16, 5-6 see it regularly. And that's just the US. 7. DAMNING PROBLEM: Fuel Hog, Maintenance Dump. Is an instant drain on profit as the plane barely pays for the flight with all the fuel it has. And since it is so large, maintenance is expensive. 8. DOOMED AT START: No American carrier placed a single order. For a single plane. Delta, United, and American did not sign up. US airlines have deep pockets. And it was not an anti-Airbus grudge. A320/1, A350 are workhorses of all major US airlines.