Sound Transit offers e-mail and text alert subscriptions. This service is free (text message charges may apply depending on your mobile service plan) and you can unsubscribe at any time.
Service alerts
Stay in the know with rider alerts for construction and event related revisions to Sound Transit service. Unexpected or last-minute changes to service may not be available on this page.
Elevator and escalator outages
Elevator outage
Mar 12 - 5:01 p.m.
(updated: May 12 - 5:00 p.m.)
Everett Station | Elevator Service Outage
Routes 510, 512, 532 & N Line
The skybridge elevator west of the tracks at Everett Station (also known as Elevator #2) is out of service until further notice. Passengers needing elevator service should park on the west side of the station to access the Sounder train.
Please contact a Security Officer for further assistance.
Masks are recommended by public health authorities while on-board transit.
Elevator outage
Apr 25 - 4:11 p.m.
(updated: May 12 - 4:59 p.m.)
Mukilteo Station is experiencing a an elevator outage until further notice.
Please contact the station agent or security officer for further assistance.
Updates to be provided as they become available
Masks are recommended by public health authorities while on-board transit.
Elevator outage
Nov 2 - 1:59 p.m.
(updated: May 19 - 11:43 a.m.)
*This outage list is updated once every 24 hours, Monday through Friday, (except Holidays) and does not include short-term outages that may occur throughout the day. Short-term outage alerts can be found on our Service alerts page. To receive real-time notifications of short-term outages, subscribe to Accessibility Transit Alerts.
Elevators Outages
| Service | Station | Location | Reason | Estimated Return | Alternate Access |
|---|---|---|---|---|---|
| Link | Westlake Station | #307 - Station Access | Repair | 5/27 | Use stairs or escalator |
| Link | University Street Station | #501 - Station Access | Repair | TBD | Use stairs or escalator |
| Link | Pioneer Square Station | #701 - Station Access | Repair | 6/17 | Use stairs or escalator |
| Link | Beacon Hill Station | #004 - Station Access | Repair | TBD | Use stairs or escalator |
| Sounder | Kent Station | #003 - Station Access | Repair | 5/24 | Use stairs or escalator |
| ST Express | Issaquah Transit Center | #001 - Station Access | Repair | 5/25 | Use stairs or escalator |
Escalators Outages
| Station | Location | Reason | Estimated Return | Alternate Access | |
|---|---|---|---|---|---|
| Capitol Hill Station | #002 - Station Access | Repair | 5/19 | Use stairs or elevator | |
| Westlake Station | #307 - Station Access | Repair | TBD | Use stairs or elevator | |
| Westlake Station | #309 - Station Access | Repair | 5/27 | Use stairs or elevator | |
| Westlake Station | #310 - Station Access | Repair | 6/17 | Use stairs or elevator | |
| Westlake Station | #312 - Station Access | Repair | TBD | Use stairs or elevator | |
| Westlake Station | #313 - Station Access | Repair | TBD | Use stairs or elevator | |
| Westlake Station | #316 - Station Access | Repair | 5/20 | Use stairs or elevator | |
| Pioneer Square Station | #705 - Station Access | Repair | TBD | Use stairs or elevator | |
| Pioneer Square Station | #706 - Station Access | Repair | 6/17 | Use stairs or elevator | |
| International District / Chinatown Station | #902 - Station Access | Repair | TBD | Use stairs or elevator | |
| International District/ Chinatown Station | #904 - Station Access | Repair | TBD | Use stairs or elevator | |
| SeaTac/Airport Station | #002 - Station Access | Repair | TBD | Use stairs or elevator |
Masks are recommended by public health authorities while on-board transit.
ST Express bus
Partial service
May 19 - 4:35 a.m.
(updated: May 19 - 5:31 p.m.)
ST Express trip cancellations | May 19
Several Routes
The following ST Express trips are canceled today.
This list is updated each weekday (4:30 a.m. to 11:59 p.m.) and each Saturday and Sunday (8:00 a.m. to 11:59 p.m.).
If the trip you intended to ride is canceled, you may click on the route number (to the left, in blue) to find alternatives in that route's entire schedule. Or consult the Sound Transit Trip Planner for more alternatives.
We update this list frequently, as cancellations are decided. This information is subject to change with limited to no notice.
ST Express route (direction) |
Canceled trips today |
|---|---|
510 (Everett - Seattle) |
|
|
510 SB (to Seattle) |
departing Hewitt Ave & Fulton St (downtown Everett): departing Everett Station - Bay C1: |
| 510 NB (to Everett) | departing 4th Ave S & S Jackson St: 5:42 p.m., 5:57 p.m. |
511 (Ash Way - Northgate) |
|
|
511 SB (to Northgate) |
departing Ash Way P&R - Bay 1: none |
| 511 NB (to Ash Way) | departing Northgate Station - Bay 2: 3:35 p.m. |
512 (Everett - Northgate) |
|
|
512 SB (to Northgate) |
departing Everett Station - Bay C1: 9:18 a.m. |
| 512 NB (to Everett) |
departing Northgate Station - Bay 2: departing 4th Ave S & S Jackson St (late Sunday night service only): |
513 (Seaway TC - Northgate) |
|
|
513 SB (to Northgate) |
departing Seaway TC - Bay 11: none |
| 513 NB (to Seaway TC) | departing Northgate Station - Bay 2: 4:15 p.m. |
522 (Woodinville - Roosevelt) |
|
|
522 WB (to Roosevelt) |
departing Woodinville P&R: |
| 522 EB (to Woodinville) |
departing 12th Ave NE & NE 67th St - Bay 3 (Roosevelt Station): |
532 (Everett - Bellevue) |
|
|
532 SB (to Bellevue) |
departing Everett Station - Bay C3: none |
| 532 NB (to Everett) | departing NE 10th St & 102nd Ave NE: 3:41 p.m. |
535 (Lynnwood - Bellevue) |
|
|
535 SB (to Bellevue) |
departing Lynnwood TC - Bay D1: none |
| 535 NB (to Lynnwood TC) | departing NE 10th St & 102nd Ave NE: none |
542 (Redmond - University District) |
|
|
542 WB (to University District) |
departing Redmond TC - Bay 5: |
| 542 EB (to Redmond) |
departing 15th Ave NE & NE 43rd St: |
545 (Redmond - Seattle) |
|
|
545 WB (to Seattle) |
departing Bear Creek P&R: |
| 545 EB (to Redmond) |
departing 6th Ave S & S Royal Brougham Way: |
550 (Bellevue - Seattle) |
|
|
550 WB (to Seattle) |
departing 110th Ave NE & NE 10th St: |
| 550 EB (to Bellevue) |
departing Union St & 5th Ave: |
554 (Issaquah - Seattle) |
|
|
554 WB (to Seattle) |
departing NE Redmond Fall City Rd & 185th Ave NE: departing Issaquah Highlands P&R: |
| 554 EB (to Issaquah) | departing Lenora St & 4th Ave: none |
556 (Issaquah - University District) |
|
|
556 WB (to University District) |
departing Issaquah Highlands P&R: |
|
556 EB (to Issaquah) |
departing 15th Ave NE & NE 43rd St: |
560 (Bellevue - West Seattle) |
|
| 560 WB (to West Seattle) |
departing 105th Ave & NE 2nd St (Bellevue): |
| 560 EB (to Bellevue) | departing 25th Ave SW & SW Barton St - Bay 4 (Westwood Village): none |
566 (Auburn - Redmond) |
|
| 566 NB (to Redmond) |
departing Auburn Station - Bay 1: departing Kent Station - Bay 3: |
| 566 SB (to Auburn) |
departing 156th Ave & 40th St: |
574 (Lakewood - SeaTac Airport) |
|
| 574 NB (to SeaTac Airport) | departing Lakewood TC - Zone M: none |
| 574 SB (to Lakewood) | departing SeaTac Station: 4:03 p.m. |
577 (Federal Way - Seattle) |
|
| 577 NB (to Seattle) | departing Federal Way TC - Bay 7: none |
| 577 SB (to Federal Way) | departing Fairview Ave N & Thomas St (South Lake Union): none |
578 (Puyallup - Seattle) |
|
| 578 NB (to Seattle) | departing Puyallup Station - Bay 3: none |
| 578 SB (to Puyallup) | departing Fairview Ave N & Thomas St (South Lake Union): none |
580 (Puyallup - Lakewood) |
|
| 580 SB (to Lakewood) |
departing Puyallup Station South Platform: |
| 580 NB (to Puyallup) |
departing South Hill P&R - Bay 1: |
586 (Tacoma - University District) |
|
| 586 NB (to University District) | departing Tacoma Dome Station - Zone E: none |
| 586 SB (to Tacoma) | departing 7th Ave NE & NE 47th St (University District): none |
590 (Tacoma - Seattle) |
|
| 590 NB (to Seattle) |
departing 10th & Commerce TC - Zone D (downtown Tacoma): |
| 590 SB (to Tacoma) | departing Stewart St & Yale Ave N (South Lake Union): 4:16 p.m., 4:36 p.m. |
592 (DuPont - Seattle) |
|
| 592 NB (to Seattle) | departing DuPont Station - Bay 6: none |
| 592 SB (to DuPont) | departing Stewart St & Yale Ave N (South Lake Union): none |
594 (Lakewood - Seattle) |
|
| 594 NB (to Seattle) |
departing DuPont Station - Bay 6: departing Lakewood Station - Bay 3: |
| 594 SB (to Lakewood/DuPont) | departing Stewart St & Yale Ave N (South Lake Union): 7:15 a.m. |
595 (Gig Harbor - Seattle) |
|
| 595 NB (to Seattle) | departing Purdy P&R: none |
| 595 SB (to Gig Harbor) | departing Stewart St & Yale Ave N (South Lake Union): none |
596 (Sumner - Bonney Lake) |
|
| 596 EB (to Bonney Lake) | departing Sumner Station - Bay 3: none |
| 596 WB (to Sumner Station) | departing Bonney Lake P&R - Bay 5: none |
Masks are recommended by public health authorities while on-board transit.
Reroute
Apr 15 - 4:59 p.m.
(updated: May 19 - 7:17 p.m.)
ST Express Route 554 will be rerouted overnight off of Rainier Ave S due to construction activity. This reroute will be in effect from 10:00 p.m. on Thursday, May 19 through 5:00 a.m. on Friday, May 20.
Start and end times for this event may be subject to change.
ST Express 554 – Westbound to Seattle
[10:00 p.m. - 5:00 a.m.]
Missed stops:
- Rainier Ave S & S Charles St
Use stops:
- 4th Ave S & S Jackson St
ST Express 554 – Eastbound to Issaquah
[10:00 p.m. - 5:00 a.m.]
Missed stops:
- S Jackson St & Maynard Ave S
- Rainier Ave S & S Charles St
Use stops:
- 2nd Ave Ext S & Yesler Way
Masks are recommended by public health authorities while on-board transit.
Reroute
Apr 25 - 6:30 p.m.
(updated: May 16 - 7:41 p.m.)
ST Express Route 542 will be rerouted near the University of Washington overnights Monday, May 16 through Friday, May 20. This reroute will be in effect between the hours of 10:00 p.m. and 5:00 a.m. due to construction activity.
Start and end times for this event may be subject to change.
ST Express 542 – Westbound to University District
Missed stops:
- None
ST Express 542 – Eastbound to Redmond
[10:00 p.m. - 5:00 a.m.]
Missed stops:
- NE Pacific St & Montlake Boulevard NE - Bay 1
Use stops:
- NE Pacific St & 15th Ave NE
- NE Pacific St & Montlake Boulevard NE - Bay 2
Masks are recommended by public health authorities while on-board transit.
Reroute
Mar 22 - 6:15 p.m.
(updated: May 12 - 5:05 p.m.)
Downtown Bothell | Eastbound | Main St
Route 522
UPDATE (4/29): ST Express Route 522 is on a long term reroute in downtown Bothell.
ST Express 522 – Westbound to Seattle
Missed stops:
- None
ST Express 522 – Eastbound to Woodinville
Missed stops:
- Main St & 103rd Ave NE
Use stops:
- Old Bothell Way NE & 98th Ave NE
- Beardslee Boulevard & Sunrise Dr
Masks are recommended by public health authorities while on-board transit.
Reroute
Apr 28 - 6:12 p.m.
(updated: May 12 - 5:05 p.m.)
Redmond Technology Station | Service Revisions
Routes 545 & 566
ST Express routes 545 & 566 will be on a reroute beginning Wednesday, April 29th until further notice due to construction activity at the Redmond Technology Station.
Start and end times for this event are subject to change.
ST Express 545 – Westbound to Seattle
Missed stops:
- Redmond Technology Station – Bay 4
Use stops:
- SR-520 & NE 40th ST
ST Express 545 – Eastbound to Redmond
Missed stops:
- None
ST Express 566 – Northbound to Redmond Technology Station
Missed stops:
- None
ST Express 566 – Southbound to Auburn
Missed stops:
- 156th Ave NE & NE 40th St
- Redmond Technology Station - Bay 4
Use stops:
- Redmond Technology Station - Bay 8
*ST Express 567 remains suspended due to COVID-19 related service reductions.
Masks are recommended by public health authorities while on-board transit.
Elevator outage
Mar 12 - 5:01 p.m.
(updated: May 12 - 5:00 p.m.)
Everett Station | Elevator Service Outage
Routes 510, 512, 532 & N Line
The skybridge elevator west of the tracks at Everett Station (also known as Elevator #2) is out of service until further notice. Passengers needing elevator service should park on the west side of the station to access the Sounder train.
Please contact a Security Officer for further assistance.
Masks are recommended by public health authorities while on-board transit.
Announcement
May 16 - 6:39 a.m.
(updated: May 16 - 7:02 a.m.)
Welcome to the Upgraded ORCA System
Several Routes, 1 Line, N Line, S Line & T Line
Hundreds of thousands of ORCA transit customers across the Puget Sound region have access to a new website, smartphone app, and real-time value loading for their ORCA cards! Customers will see new card readers and vending machines as technology is updated and rolled out at transit locations throughout the region. This will mark the start of ongoing improvements to the ORCA system over the next several years.
What You Need to Know:
- You do not need a new card. All cards will work indefinitely (Adult, Youth, Senior, Disabled, LIFT and other reduced fare cards)
- All existing ORCA card value, E-purse balance or passes have been retained
- You can load E-purse value or passes instantly at myORCA.com, with the myORCA app, at a vending machine, or by calling or visiting customer service
- Retail stores will only load E-purse value and no longer sell passes. You can convert E-purse value to a pass at myORCA.com, with the mobile app, at vending machines or visiting customer service
- While technology is updated, all value loaded at a retail store location will experience a one-hour delay before it is available for use
- All customers who had an account at orcacard.com will need to set up a new account at myORCA.com or with the myORCA app, We encourage all riders to set up an account, however it is not required to use ORCA
- All ORCA Autoloads have expired. Set-up your Autoload again at myORCA.com
Stop closure
Mar 13 - 1:58 p.m.
(updated: May 12 - 5:04 p.m.)
Stop Closure | Central Ave N & 228th St
Route 566
ST Express routes 566 & 567* are unable to serve the stops at Central Ave N & 228th St in Kent until further notice.
*ST Express 567 remains suspended due to COVID-19 related service reductions.
Masks are recommended by public health authorities while on-board transit.
Link light rail
Announcement
May 4 - 3:08 p.m.
(updated: May 12 - 5:03 p.m.)
The Capitol Hill Station west entrance ticket machine is temporarily not accepting credit/debit payments. Please use the ticket machines at the south entrance, located at E Denny Way & Broadway, to purchase fare or load ORCA cards using credit/debit payment if needed.
Passengers requiring credit/debit transaction may purchase tickets digitally by downloading the Transit Go app, or visiting a nearby ORCA retailer.
Please visit orcacard.com to manage ORCA account services and to locate participating retailers.
Masks are recommended by public health authorities while on-board transit.
Track maintenance
Mar 9 - 6:48 p.m.
(updated: May 12 - 5:03 p.m.)
Beginning Thursday, March 10, four weeks of rail grinding maintenance work will begin on Link 1 Line tracks. The rail grinding activity will take place Thursday to Monday, 11 p.m. until 5 a.m., beginning at the University of Washington Station and continuing south. Passengers, businesses, and residents may experience noisy conditions during this process. Observers should expect to see localized sparks near the rail-grinding equipment. This is a normal part of the rail-grinding process, which is necessary to maintain rails in a safe state free of defects and degradation
After 11 p.m., passengers may experience brief delays as trains single-track around the affected bore and track segment, in addition to brief periods of single-side station boardings. Updates will be provided as necessary.
Masks are recommended by public health authorities while on-board transit.
Announcement
May 16 - 6:39 a.m.
(updated: May 16 - 7:02 a.m.)
Welcome to the Upgraded ORCA System
Several Routes, 1 Line, N Line, S Line & T Line
Hundreds of thousands of ORCA transit customers across the Puget Sound region have access to a new website, smartphone app, and real-time value loading for their ORCA cards! Customers will see new card readers and vending machines as technology is updated and rolled out at transit locations throughout the region. This will mark the start of ongoing improvements to the ORCA system over the next several years.
What You Need to Know:
- You do not need a new card. All cards will work indefinitely (Adult, Youth, Senior, Disabled, LIFT and other reduced fare cards)
- All existing ORCA card value, E-purse balance or passes have been retained
- You can load E-purse value or passes instantly at myORCA.com, with the myORCA app, at a vending machine, or by calling or visiting customer service
- Retail stores will only load E-purse value and no longer sell passes. You can convert E-purse value to a pass at myORCA.com, with the mobile app, at vending machines or visiting customer service
- While technology is updated, all value loaded at a retail store location will experience a one-hour delay before it is available for use
- All customers who had an account at orcacard.com will need to set up a new account at myORCA.com or with the myORCA app, We encourage all riders to set up an account, however it is not required to use ORCA
- All ORCA Autoloads have expired. Set-up your Autoload again at myORCA.com
Sounder train
Elevator outage
Mar 12 - 5:01 p.m.
(updated: May 12 - 5:00 p.m.)
Everett Station | Elevator Service Outage
Routes 510, 512, 532 & N Line
The skybridge elevator west of the tracks at Everett Station (also known as Elevator #2) is out of service until further notice. Passengers needing elevator service should park on the west side of the station to access the Sounder train.
Please contact a Security Officer for further assistance.
Masks are recommended by public health authorities while on-board transit.
Elevator outage
Apr 25 - 4:11 p.m.
(updated: May 12 - 4:59 p.m.)
Mukilteo Station is experiencing a an elevator outage until further notice.
Please contact the station agent or security officer for further assistance.
Updates to be provided as they become available
Masks are recommended by public health authorities while on-board transit.
Announcement
May 16 - 6:39 a.m.
(updated: May 16 - 7:02 a.m.)
Welcome to the Upgraded ORCA System
Several Routes, 1 Line, N Line, S Line & T Line
Hundreds of thousands of ORCA transit customers across the Puget Sound region have access to a new website, smartphone app, and real-time value loading for their ORCA cards! Customers will see new card readers and vending machines as technology is updated and rolled out at transit locations throughout the region. This will mark the start of ongoing improvements to the ORCA system over the next several years.
What You Need to Know:
- You do not need a new card. All cards will work indefinitely (Adult, Youth, Senior, Disabled, LIFT and other reduced fare cards)
- All existing ORCA card value, E-purse balance or passes have been retained
- You can load E-purse value or passes instantly at myORCA.com, with the myORCA app, at a vending machine, or by calling or visiting customer service
- Retail stores will only load E-purse value and no longer sell passes. You can convert E-purse value to a pass at myORCA.com, with the mobile app, at vending machines or visiting customer service
- While technology is updated, all value loaded at a retail store location will experience a one-hour delay before it is available for use
- All customers who had an account at orcacard.com will need to set up a new account at myORCA.com or with the myORCA app, We encourage all riders to set up an account, however it is not required to use ORCA
- All ORCA Autoloads have expired. Set-up your Autoload again at myORCA.com
Announcement
Aug 23 - 1:56 p.m.
(updated: May 12 - 4:59 p.m.)
Temporary Sounder Bike Restriction
N Line & S Line
Due to safety concerns, bicycles are restricted on certain Sounder cars until further notice. We have posted “No Bike” signs on these cars to identify them for passengers traveling with bikes.
Only one car per train is affected and all other cars will continue to accept up to four bicycles each. Should you approach a Sounder car that displays the “No Bike” signs, please proceed to the next car.
Thank you.
Masks are recommended by public health authorities while on-board transit.
Other
ORCA card readers are experiencing a technical issue which is causing some units to display the word “null” after tapping an ORCA card to ride. At this time, card readers continue to process fare payment and provide the correct light and sound indication when an ORCA card is tapped. Please continue to tap to ride.
Masks are recommended by public health authorities while on-board transit.
Elevator outage
Nov 2 - 1:59 p.m.
(updated: May 19 - 11:43 a.m.)
*This outage list is updated once every 24 hours, Monday through Friday, (except Holidays) and does not include short-term outages that may occur throughout the day. Short-term outage alerts can be found on our Service alerts page. To receive real-time notifications of short-term outages, subscribe to Accessibility Transit Alerts.
Elevators Outages
| Service | Station | Location | Reason | Estimated Return | Alternate Access |
|---|---|---|---|---|---|
| Link | Westlake Station | #307 - Station Access | Repair | 5/27 | Use stairs or escalator |
| Link | University Street Station | #501 - Station Access | Repair | TBD | Use stairs or escalator |
| Link | Pioneer Square Station | #701 - Station Access | Repair | 6/17 | Use stairs or escalator |
| Link | Beacon Hill Station | #004 - Station Access | Repair | TBD | Use stairs or escalator |
| Sounder | Kent Station | #003 - Station Access | Repair | 5/24 | Use stairs or escalator |
| ST Express | Issaquah Transit Center | #001 - Station Access | Repair | 5/25 | Use stairs or escalator |
Escalators Outages
| Station | Location | Reason | Estimated Return | Alternate Access | |
|---|---|---|---|---|---|
| Capitol Hill Station | #002 - Station Access | Repair | 5/19 | Use stairs or elevator | |
| Westlake Station | #307 - Station Access | Repair | TBD | Use stairs or elevator | |
| Westlake Station | #309 - Station Access | Repair | 5/27 | Use stairs or elevator | |
| Westlake Station | #310 - Station Access | Repair | 6/17 | Use stairs or elevator | |
| Westlake Station | #312 - Station Access | Repair | TBD | Use stairs or elevator | |
| Westlake Station | #313 - Station Access | Repair | TBD | Use stairs or elevator | |
| Westlake Station | #316 - Station Access | Repair | 5/20 | Use stairs or elevator | |
| Pioneer Square Station | #705 - Station Access | Repair | TBD | Use stairs or elevator | |
| Pioneer Square Station | #706 - Station Access | Repair | 6/17 | Use stairs or elevator | |
| International District / Chinatown Station | #902 - Station Access | Repair | TBD | Use stairs or elevator | |
| International District/ Chinatown Station | #904 - Station Access | Repair | TBD | Use stairs or elevator | |
| SeaTac/Airport Station | #002 - Station Access | Repair | TBD | Use stairs or elevator |
Masks are recommended by public health authorities while on-board transit.
We need your feedback!
It doesn’t take much time to make a big difference.
Sound Transit is conducting a brief survey to improve our services and we want to hear from you.
By sharing your thoughts, you’ll ensure that we consider the needs and perspectives of all of our passengers.
Click here to complete this survey.
THANK YOU in advance for your time and feedback.
Encuesta a los usuarios: Sound Transit quiere conocer a través de usted cómo mejorar nuestros servicios. Haga clic aquí para completar nuestra encuesta en español. Gracias.
乘客問卷調查：海灣公共交通局 (Sound Transit) 希望聽取您的意見，以了解如何改善我們的服務。 請按一下這裏，以便使用 繁體中文 填寫我們的問卷調查。 謝謝。
乘客调查：Sound Transit 想通过您的反馈，了解如何改善服务。 请点击此处使用简体中文完成调查。 谢谢！
탑승객 대상 설문조사: Sound Transit은 당사 서비스 개선 방안에 대해 여러분의 의견을 듣고자 합니다. 귀하에게 해당하는 한국어로 설문조사에 참여하시려면 여기를 누르세요. 감사합니다.
Khảo Sát Hành Khách: Sound Transit muốn lắng nghe ý kiến của bạn về cách cải thiện dịch vụ của chúng tôi. Bấm vào đây để trả lời khảo sát của chúng tôi bằng tiếng Việt. Xin cảm ơn.
Survey ng Rider: Gusto ng Sound Transit na malaman mula sa iyo kung paano mapapahusay ang aming mga serbsiyo. Mag-click dito para kumpletuhin ang aming survey sa Tagalog. Salamat.
Дополнительный опрос: поделитесь своим мнением с Sound Transit, чтобы мы могли повысить качество наших услуг. Нажмите здесь, чтобы пройти наш опрос на русском языке. Спасибо.
Masks are recommended by public health authorities while on-board transit.