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27 Jan, 7 tweets, 6 min read
For years, elected reps, advocates and passengers have envisioned a NorCal region connected by a rail network prioritizing efficiency & equity.

Today BART & @CapitolCorridor are taking a major step to realize the vision. Say hello to the #Link21 Program! link21program.org Aerial photo of BART and Capitol Corridor trains at Richmond
Link21 is a multiyear Program to create an integrated rail network for a growing 21-county Northern California Megaregion.

#Link21 will optimize existing rail networks and new rail projects to increase capacity and reliability – such as a new transbay rail crossing. Map of 21 counties in Northern California taken into account
What does an integrated rail network in Northern California with #Link21 look like?

It can mean:
- More destinations within 1-hr radius by rail
- More direct connections
- Reduced wait times
- Extended BART service hours
- And more! Map of Bay Area regional transit services
Link21 Program is a jointly led effort by BART and @CapitolCorridor. BART’s 2016 voter-approved Measure RR provided funding to begin the development of #Link21.

Both agencies are committed to help find solutions to alleviate many transportation challenges in the region. Aerial shot of Capitol Corridor and BART trains at Richmond
We are still in the early stages of #Link21 development & many projects to improve the passenger rail network, like the new transbay rail crossing, are being considered.

A top objective for Link21 is to seek public input to help shape the Program’s future. Timeline out of the Link21 program. Program identification (
Today @BayAreaEconomy published a report on the economic potential of a new transbay rail crossing. link21.in/bacei-rpt

On Feb 4, @BayAreaEconomy will be hosting a webinar with BART and @CapitolCorridor staff to discuss the report.
Register to join: link21.in/bacei1 Cover of Bay Area Council Economic Institute's report "
Link21 is ready to listen to you, the public, to help chart the course for the future.

#Link21 Program created a 2-minute goals and objectives survey to better understand what the people in NorCal prioritize.

Please take some time to visit link21.in/gosurvey and fill out! Link21 brand confetti photo

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More from @SFBART

SFBART Profile picture
28 Jan
The BART Board meets at 9am: bart.gov/about/bod/mult…
Topics:
▪️New Customer Satisfaction Survey results (72%, up from 56% in 2018)
▪️COVID-19 update including employee testing and contract tracing
▪️Automatic License Plate Readers for parking enforcement and to simplify payment
2020 Customer Satisfaction Survey:
▪️72% satisfied (up from 56%)
▪️81% would recommend to a friend (up from 74%)
▪️79% say they can socially distance their entire trip, 16% say they can for part of their ride and 4% say they can't
▪️Riders rated our COVID response above average
The results are encouraging and serve as an incentive for us to work even harder.

The results give us guidance on where we need to focus more attention and resources: enhancing cleaning efforts, increasing the presence of safety staff, and keeping trains running as frequently.
Read 4 tweets
SFBART Profile picture
26 Jan
Ventilation in an enclosed setting like a train car is critical in preventing spread of COVID-19.

BART train cars replace air about every 70 seconds, far more often than an office or store.

Now BART will begin using denser air filters across its fleet to buff its ventilation.
In August, BART announced a pilot program to test a denser MERV-14 filter to catch microscopic air particles. Previously, BART used a MERV-8 filter.

After six months of tests, BART will be transitioning to using MERV-14 filters on all its train cars.

What's the difference between a MERV-14 and MERV-8 filter?

MERV-14, left, has more folds. MERV-8 filters, right, could trap particles between 3 and 10 microns in size; the new MERV-14’s can capture much smaller particles between .3 and 1 microns.
Read 9 tweets
SFBART Profile picture
26 Jan
Immediate repair work to begin on traction power cables between North Berkeley and El Cerrito Plaza stations. No service impacts expected. Learn more: bddy.me/2MuqpYx
We want those that live near our tracks between the North Berkeley and El Cerrito Plaza stations to know
there will be construction activities under our aerial trackway during the day and night with the potential of noise and light impacts from the work.
This critical infrastructure provides power for our trains from the high voltage switching substation and supports redundancy for this portion of the BART system. The equipment is essential for ensuring reliable train service between North Berkeley and the Richmond Yard.
Read 4 tweets
SFBART Profile picture
25 Jan
Happy Monday, Bay Area!

BART continues to provide weekly train car loading charts on bart.gov/crowding & social media. The charts provide a snapshot of what riders can expect on-board trains this week.

Yellow & Blue lines for 1/25/21-1/29/21 ImageImageImageImage
The charts have been updated and archived on bart.gov/crowding every week.

How to use it: Look up your line, station and then departure time. The # in the box is the expected average # of riders on each car at departure of station.

Red and Green lines, 1/25/21-1/29/21 ImageImageImageImage
Important notes about the data in these charts:

-Reflects average # of riders on each car as the train departs each station
-Assumes passengers are evenly spread through all cars on a train
-Is not real-time information

Orange Line, 1/25/21-1/29/21 ImageImage
Read 4 tweets
SFBART Profile picture
19 Oct 20
Happy Monday, Bay Area!

We're now on the fifteenth week of providing weekly train car loading charts on bart.gov/crowding & social media. The charts provide a snapshot of what riders can expect on-board trains this week.

Yellow and Blue lines for 10/19/20-10/23/20
Using recent ridership data, the charts are posted on bart.gov/crowding every week.

Look up your line, station and then departure time. The # in the box is the expected average # of riders on each car at departure of station.

Red and Green lines, 10/19/20-10/23/20
Please be aware the data in these charts:

-Reflects average # of riders on each car as the train departs each station
-Assumes passengers are evenly spread through all cars on a train
-Is not real-time information

Orange Line, 10/19/20-10/23/20
Read 4 tweets
SFBART Profile picture
13 Aug 20
Let's talk air flow in BART cars:

BART cars filter & replace inside air about every 70 seconds. This was the case before COVID-19 and is still now. Air is filtered more effectively than in an office or grocery store.

We've also begun new pilot tests for better filtration.
Note: It is going to be a long Twitter thread encompassing many technical points.

Comprehensive information on BART train car air flow and our pilot tests can be read at bart.gov/news/articles/…
On Monday, @nytimes published an illuminating article on subway car air flow in NYC. nytimes.com/interactive/20…

Experts recommend indoor office air be replaced up to 8X/hour, per NY Times. BART cars currently replace air at a much higher rate at 50+/hour.
Read 17 tweets

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