BART currently has the capacity to operate a maximum of 24 trains per hour in each direction through the Transbay Tube between San Francisco and Oakland.
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Taking BART, he noted, is also faster than driving the highly trafficked highways into San Francisco. “Being on BART makes me feel relieved. It's way more stressful driving,” he said. “It's tough commuting this far, but public transit makes it more manageable.”
The San Francisco Bay Area Rapid Transit District (BART) is a heavy-rail public transit system that connects the San Francisco Peninsula with communities in the East Bay and South Bay.
Transit Saves You MoneyThe average BART fare is approximately $3.96. For the same price as one year of car ownership, you could take nearly 3,000 average trips on BART – or about seven trips a day. Use our Fare Calculator to determine the exact cost of your trip.
1. Q: Why doesn't BART run 24/7 or at least later on Friday and Saturday nights? A: The short window of time when BART isn't in operation is used for essential nightly track maintenance to help keep BART safe and reliable.
During peak commute times, over 28,000 passengers per hour travel through the tunnel with headways as short as 2.5 minutes. BART trains can reach their highest speeds in the tube, up to 80 miles per hour (129 km/h), although trains typically operate at 70 miles per hour (113 km/h) unless trying to recover from a delay.
Q9: Will the new cars be faster? A: No.The new cars have a maximum speed of 80 miles per hour. To go faster than that, changes would need to be made, not only to the rail car propulsion systems, but also to other BART infrastructure.
Earthquake Safety ProgramThe Transbay Tube is BART's most critical asset. Although the tube is structurally sound, in a very large and very rare earthquake, the outer shell and concrete liner are predicted to crack.
Like most trains, BART wheels are tied together with rigid axels and no differentials. This means the wheels always rotate at the same speed, even around corners. Because the inner radius is smaller, there is less distance to travel, which can cause a slippage between the wheels and track, which is noisy.
Cars have a starting acceleration of 3.0 mph/s or 4.8 km/(h·s) and are capable of holding that acceleration up to 31 mph (50 km/h). Residual acceleration at 80 mph (130 km/h) is 0.78 mph/s or 1.26 km/(h·s). Braking rates range from 0.45 mph/s or 0.72 km/(h·s) up to 3.0 mph/s or 4.8 km/(h·s) (full service rate).