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DART would then kinetically impact the asteroid's moon on 26 September 2022, during a close approach to Earth. [13] The AIM orbiter was however canceled, then replaced by Hera which plans to start observing the asteroid four years after the DART impact. Live monitoring of the DART impact thus had to be obtained from ground-based telescopes and ...
Dallas Area Rapid Transit (DART) is a transit agency serving the Dallas–Fort Worth metroplex of Texas. It operates buses, light rail, commuter rail, and high-occupancy vehicle lanes in Dallas and twelve of its suburbs. In 2023, the system had a ridership of 50,463,300, or about 167,100 per weekday as of the third quarter of 2024.
In maps before 2006, DART labeled the Pleasant Grove to Carrollton route the "Orange Line", and the Irving route was the "Purple Line". Green was generally used on DART maps to denote the route of the Trinity Railway Express. By the time construction started, DART was using the new Green Line designation as part of its marketing efforts, saying ...
Each DART station consists of a surface buoy and a seafloor bottom pressure recording (BPR) package that detects water pressure changes caused by tsunamis.The surface buoy receives transmitted information from the BPR via an acoustic link and then transmits data to a satellite, which retransmits the data to ground stations for immediate dissemination to NOAA's Tsunami Warning Centers, NOAA's ...
Before 2006, the TRE was typically shown as a green line on DART maps and therefore was sometimes referred to as the "Green Line," but this was not an official designation. In 2006, DART chose green as the color for its new light rail route, the Green Line. Since 2006, the TRE has been shown as a dark blue line on DART maps.
The Green Line is a 28.6-mile (46.0 km) light rail line in Dallas, United States, operated by the Dallas Area Rapid Transit authority (DART). The US$1.7 billion project opened in phases, starting in 2009. It operates in addition to the Blue, Red, and Orange lines.
[4] [5] DART previously bought the right-of-way to the 52-mile (84 km) Cotton Belt corridor train tracks in 1990 and freight trains had since ceased use of the tracks. [6] [7] The line was also included in DART's 2030 Transit System Plan. However, in 2010 DART scrapped much of their 2030 plan, citing deficits and drops in revenue. [8]
In 1997, the Red Line was extended to Park Lane Station, and was the first DART line to use the 3.5-mile twin tunnels. On December 18, 2000, Cityplace Station , the southwest's first commercial subway station was opened along the Red Line underneath Cityplace Tower in the tunnel under the Central Expressway.