P20 Bus Schedule: WMATA Greenbelt Rd–New Carrollton Route Map, Stops, Live Times, Fare & PDF Viewer
The P20 bus schedule is for WMATA Metrobus service between Greenbelt and New Carrollton through Prince George’s County corridors such as Greenbelt Road, Beltway Plaza, Lanham Severn Road, Annapolis Road and Harkins Road.
This upgraded guide fixes the common “NYC MTA P20” confusion and gives riders the official WMATA timetable, route-profile map, busETA live-tracker workflow, fare rules, transfers, accessibility help, stop-bay warnings and embedded PDFs in one mobile-friendly page.
P20 Daily Check Board — Do This Before Walking to the Stop
direction + stop + fare + alertStart here if you need the next P20 bus. A useful P20 answer depends on five things: the correct agency, direction, exact stop or bay, travel day, and live arrival. Do not use an old screenshot or a broad “P20 near me” result as final proof.
Confirm WMATA
The verified primary match is WMATA Metrobus P20, not a New York MTA route.
Pick direction
Choose North to Greenbelt or South to New Carrollton before reading any time.
Check the PDF
Use the official timetable for planned timepoints, weekday/weekend differences and route notes.
Open busETA
Use busETA for live stop-level arrivals, direction, stop names and bus-bay checks.
Confirm the bay
At Greenbelt and New Carrollton, use the exact bay shown by WMATA, not only the station name.
Check fare + transfer
Use SmarTrip or contactless payment consistently if your trip includes a transfer.
Need live P20 stop-level arrivals right now?
📍 Open P20 busETAQuick Answer: What Is the P20 Bus Schedule?
The P20 is a WMATA Metrobus Maryland route named Greenbelt Rd–New Carrollton. It connects Greenbelt and New Carrollton with local Prince George’s County stops around Beltway Plaza, Greenbelt Road, Lanham Severn Road, Annapolis Road, Harkins Road and station bus bays.
Use the official WMATA timetable PDF for planned timepoints and the busETA route page for live arrivals. The timetable is useful for planning, but busETA is the better final check before leaving home, work, school, shopping, medical appointments or a rail transfer.
North to Greenbelt
Use this direction when traveling from New Carrollton and corridor stops toward Greenbelt.
South to New Carrollton
Use this direction when traveling from Greenbelt and Greenbelt Road corridor stops toward New Carrollton.
Official timetable
The timetable PDF shows scheduled timepoints such as New Carrollton, Annapolis Road, Lanham Severn Road, Greenbelt Road, Beltway Plaza and Greenbelt.
Metrobus local fare
WMATA lists local bus fare at $2.25 full fare and $1.10 senior/reduced fare.
⚠️ First-screen correction
Do not title or treat this page as a simple NYC MTA P20 route. The verified useful U.S. answer is WMATA Metrobus P20. If a rider meant New York City, they likely need a route such as M20, B20, Q20A/Q20B or SIM20 instead.
Official P20 Tools for Route Map, Timetable, Live Tracker, Fare and Alerts
These official tools should control the final ride decision. This page explains them in plain English, but WMATA controls the current route, PDF, live arrival data, fare policy, accessibility information and alerts.
Source Verification and What Was Improved
Updated August 6, 2026. This rebuilt P20 article corrects the agency identity, adds official WMATA PDFs inside the page, includes the busETA workflow, explains Greenbelt/New Carrollton direction choices, adds fare and transfer details, includes accessibility and lost-item guidance, and removes thin “just check the official site” behavior.
Schema cleanup: Yoast should handle Organization, WebSite, WebPage, Article and breadcrumbs. This Custom HTML only adds extra supported schema for visible official resources, embedded PDFs, verified internal links and visible FAQs.
P20 Route Overview: Greenbelt Rd–New Carrollton in Prince George’s County
P20 is best understood as a station-and-corridor route. It helps riders move between Greenbelt, Beltway Plaza, Greenbelt Road, Lanham Severn Road, Annapolis Road, Harkins Road and New Carrollton without turning every trip into a long rail-first journey.
| Route piece | What riders should know | Best check before riding |
|---|---|---|
| Greenbelt side | Greenbelt is a major transfer point with multiple bus bays and station-area movement. | Confirm the P20 bay and direction in busETA. |
| Beltway Plaza area | Useful for shopping and errands, but mall-area walking paths and nearby stops can confuse occasional riders. | Use exact stop name, not only “Beltway Plaza.” |
| Greenbelt Road corridor | Several stops can sound similar, and traffic can affect real arrivals. | Match intersection, direction and stop code. |
| Lanham Severn / Annapolis Road | Important corridor section between local stops and New Carrollton access. | Use timetable timepoints and live arrival together. |
| New Carrollton side | New Carrollton is a transfer-heavy station area with bus bays, rail, pickup, walking paths and multiple route choices. | Confirm New Carrollton bus bay before waiting. |
💡 Rider reality check
The schedule may be correct, but station-bay walking, traffic, school-release periods, shopping-area turns and transfers can still make the trip feel late. For important rides, check busETA and take one earlier trip when possible.
P20 Stops and Route Map: Greenbelt, Beltway Plaza, Greenbelt Rd and New Carrollton
The P20 stop list matters because the route serves transfer stations, shopping areas, apartment corridors and roads where one stop can feel close to another but serve the opposite direction. A good P20 plan uses the exact stop name or stop code.
Greenbelt
Use the official route tools to confirm the correct Greenbelt bay and the P20 direction.
Beltway Plaza
Shopping-area trips need extra care because stop-side, walking path and loop movement can be confusing.
Greenbelt Rd corridor
Check exact intersections such as Greenbelt Road timepoints instead of using only the road name.
New Carrollton
Use the bus bay shown by WMATA before waiting, especially after rail, parking or another bus transfer.
- Direction first: North to Greenbelt and South to New Carrollton can use different stop sides.
- Bay first: Greenbelt and New Carrollton have multiple bus bays, not one simple curb.
- Exact stop: “Greenbelt Road” is too broad; use intersection or stop ID.
- Transfer buffer: give yourself walking time at rail and bus-bay areas.
- Live check: if the bus is not showing clearly, check date, direction, alerts and nearby stops.
⚠️ Map warning
This map is for route discovery only. Use WMATA’s official route profile, timetable, busETA and alerts for final boarding.
How to Read the P20 Timetable: Timepoints, Direction and Travel Day
The official P20 timetable includes planned timepoints. A timepoint is not always your exact stop; it is a schedule reference point. If your stop is between two timepoints, use the timetable for planning and busETA for the closest live arrival.
| Timetable item | Why it matters | Rider action |
|---|---|---|
| Direction heading | North to Greenbelt and South to New Carrollton produce different stop sequences. | Choose direction before reading a row. |
| New Carrollton / Greenbelt endpoints | Endpoints help confirm you are reading the correct side of the schedule. | Match destination sign and bus bay. |
| Corridor timepoints | Examples include Annapolis Road, Lanham Severn Road, Greenbelt Road, Greenway Center, Crescent Road and Beltway Plaza. | Use the nearest timepoint, then check your exact stop in busETA. |
| Weekend pattern | Weekend spacing can feel very different from weekday travel. | Do not use weekday memory on Saturday, Sunday or holidays. |
| Live data | Traffic, school trips, shopping-area boarding and station congestion can change actual arrival. | Check busETA 5–10 minutes before leaving. |
💡 Best commuter habit
Use the PDF to choose a trip, then use busETA to decide when to leave. If you only use the PDF, you may miss detours, delay patterns or wrong-stop issues.
P20 Live Tracker: Use busETA Without Choosing the Wrong Direction
WMATA busETA is the day-of-travel tool for P20. It can show P20 route direction, stops, stop names and live arrival estimates. The most common mistake is opening the route but reading the wrong direction.
Search P20
Use the route code P20, then verify the route name says Greenbelt Rd–New Carrollton.
Select direction
Pick North to Greenbelt or South to New Carrollton before trusting the stop list.
Choose exact stop
Use stop name, stop code or bus bay. Station names alone are too broad.
Check alerts
If arrivals look strange, check service status, planned detours, weather and temporary stop changes.
Need the official live P20 route page?
⏱️ Open P20 busETAP20 Fare, SmarTrip, Tap. Ride. Go. and Transfers
P20 is a local Metrobus route. WMATA lists local bus fare at $2.25 full fare and $1.10 senior/reduced fare. Riders can use SmarTrip and eligible contactless payment options. For transfers, use the same eligible payment method across the trip.
| Fare topic | What P20 riders should know | Common mistake |
|---|---|---|
| Local bus fare | WMATA lists local bus one-way full fare at $2.25. | Copying old fare numbers from outdated blogs. |
| Senior / reduced fare | WMATA lists senior/reduced local bus fare at $1.10. | Assuming reduced fare without eligible payment or proof. |
| Bus-to-bus transfer | Metro Bus to Metro Bus transfers are free and unlimited within two hours with eligible payment. | Switching payment methods and losing transfer recognition. |
| Bus-to-rail transfer | Metro Bus to Metro Rail or Metro Rail to Metro Bus can receive a $2.25 discount within two hours. | Assuming the discount covers every express or special route cost. |
| Children | Up to two children age 4 and younger can ride free with each fare-paying adult. | Confusing child-free rules with older child fare rules. |
| Tap. Ride. Go. | Tap a contactless card or mobile wallet at the Metro Bus farebox where supported. | Tapping a whole wallet or using a different device for the transfer. |
⚠️ Same-payment rule
For transfers, use the same SmarTrip card, contactless card or mobile wallet device. Switching cards or devices can break the transfer benefit.
Need current official fare and transfer rules?
💳 Open WMATA PayP20 Weekend, Holiday and Alert Checks
Never use weekday memory for a weekend P20 trip. Weekend spacing, first/last trips, rail connections, shopping traffic and station-bay activity can feel different. For holidays and event days, verify the date-based schedule and alerts before leaving.
- Weekday: check the PDF for planned timepoints and busETA for live arrivals.
- Saturday/Sunday: use the official timetable and date-based tools instead of weekday habit.
- Holiday: check WMATA service status before a time-sensitive trip.
- Weather: rain, snow, heat and road conditions can change walking time and bus movement.
- Rail transfer: check rail status separately if going through Greenbelt or New Carrollton.
Need WMATA service status before you ride?
⚠️ Open WMATA StatusAccessibility, Bikes, Strollers, Lost Items and Safe Boarding
WMATA says all Metro Bus vehicles have ramps or lifts, and operators can help customers get on and off safely. For P20 riders, the practical issue is often not only the bus—it is the stop environment, curb position, bus bay, crowding, lighting, weather and walking path.
Ramp or lift help
Ask the operator if you need the bus to kneel, use the ramp, use the lift or secure a mobility device.
Bike rack backup
Metro’s new rider guide says every Metro Bus has a front rack that can carry two bicycles. A full rack can still break a tight trip.
Strollers and families
Prepare fare before the bus arrives, keep the aisle clear and avoid the most crowded school and commute windows when possible.
Lost item steps
WMATA Lost and Found lets riders report items lost on Metro Rail or Metro Bus and receive a case number.
Need official Metro Bus accessibility details?
♿ Open Metro Bus AccessibilityLost something on Metro Bus or Metro Rail?
🧳 Open WMATA Lost & FoundDid You Mean NYC MTA P20? Route-Name Confusion Explained
A big trust issue on P20 pages is wrong-agency intent. Some riders search “P20 bus schedule NYC,” but New York City buses usually use borough/service prefixes such as M, Bx, B, Q, S, SIM, BM, BxM and QM. If you meant New York, verify the exact MTA route instead of trusting a copied P20 title.
M20 Manhattan
If your trip is in Manhattan and you typed P20, you may have meant M20.
B20 Brooklyn / Queens
If your trip involves Brooklyn or Queens, check whether B20 is the real route.
Q20A / Q20B Queens
If your trip involves Queens and “20,” verify Q20A or Q20B through official MTA tools.
SIM20 Express
If your trip involves Staten Island express service, SIM20 may be the route you need.
💡 Correct search habit
Search by agency + route number + destination. Example: “WMATA P20 Greenbelt,” “MTA M20 Manhattan,” or “Q20A Queens.” This prevents wrong-city bus results.
Official P20 PDF Viewers: Route Profile Map and Timetable Inside This Article
The official WMATA PDFs are embedded below so riders can verify the map and timetable without leaving this page. On some mobile browsers, PDF viewers may load slowly; use the open-PDF buttons if needed.
P20 Route Profile PDF
Best for route shape, service corridor and stop geography between Greenbelt and New Carrollton.
P20 Timetable PDF
Best for scheduled timepoints, direction patterns and travel-day planning.
🗺️ Official P20 Route Profile PDF
If the route-profile PDF does not load, open it directly.
🗺️ Open P20 Route Profile PDF📄 Official P20 Timetable PDF
If the timetable PDF does not load, open it directly.
📄 Open P20 Timetable PDFCommon P20 Schedule Mistakes That Cause Missed Trips
Using NYC MTA by mistake
P20’s verified primary match is WMATA, not a normal NYC MTA route.
Wrong direction
North to Greenbelt and South to New Carrollton must be selected before checking times.
Wrong bay
Greenbelt and New Carrollton are transfer-heavy places. Use the exact P20 bay.
Using only the PDF
The PDF is for planned timepoints. busETA is stronger for day-of-travel arrivals.
Payment switch
Changing cards or devices can break the two-hour transfer benefit.
No transfer buffer
Build walking time at Greenbelt, New Carrollton, rail platforms and bus bays.
P20 Bus Schedule FAQs
What is the P20 bus route?
P20 is a WMATA Metrobus Maryland route named Greenbelt Rd–New Carrollton. It serves corridor points between Greenbelt and New Carrollton in Prince George’s County.
Is P20 a New York MTA bus route?
No. The verified primary U.S. match for P20 is WMATA Metrobus P20. If you meant New York, check M20, B20, Q20A/Q20B, SIM20 or another exact MTA route.
Where can I find the official P20 timetable?
Use the official WMATA P20 Timetable PDF embedded in this article or open it directly from WMATA’s Maps and Schedules page.
Where can I find the official P20 route map?
Use the official WMATA P20 Route Profile PDF embedded in this article. It is the best official route-map source for the P20 corridor.
How do I track the P20 bus live?
Open WMATA busETA for route P20, choose North to Greenbelt or South to New Carrollton, then select your exact stop or bus bay.
What are the P20 directions?
The main direction labels are North to Greenbelt and South to New Carrollton. Pick the direction before reading the timetable or stop list.
How much is the P20 bus fare?
WMATA lists local bus one-way fare at $2.25 full fare and $1.10 senior/reduced fare. Always verify the current fare on WMATA’s official pay page before publishing or riding.
Do P20 bus transfers work with SmarTrip?
WMATA says Metro Bus to Metro Bus transfers are free and unlimited within a two-hour period with eligible SmarTrip/contactless payment. Use the same payment method.
Does P20 connect with rail?
P20 connects with major station areas such as Greenbelt and New Carrollton. Check rail status separately if your trip includes Metrorail, MARC, Amtrak or another bus transfer.
What stops should I check first?
Start with Greenbelt, New Carrollton, Beltway Plaza, Greenbelt Road, Lanham Severn Road, Annapolis Road and Harkins Road timepoint or corridor stops, then verify your exact stop in busETA.
Can I use contactless payment on P20?
WMATA’s Tap. Ride. Go. page explains contactless card and mobile wallet use at Metro Bus fareboxes where supported. Use the same device or card for transfer tracking.
Is P20 accessible?
WMATA says all Metro Bus vehicles have ramps or lifts. Riders who need help can ask the operator for kneeling, ramp, lift or securement assistance.
What should I do if I lose something on P20?
Use WMATA Lost and Found to report an item lost on Metro Bus or Metro Rail. WMATA’s process provides a case number after reporting.
Is BusSchedules.org the official WMATA site?
No. BusSchedules.org is an independent rider-help guide. Verify final schedules, alerts, fare rules, detours and stop changes directly with WMATA.
Final Rider Summary: Best Way to Use the P20 Bus Schedule
The best way to use the P20 bus schedule is to confirm WMATA first, choose North to Greenbelt or South to New Carrollton, open the official route profile and timetable PDFs, then check busETA for your exact stop or bus bay before leaving.
For fare and transfers, use the same SmarTrip card or eligible contactless payment method across the trip. For important rides, add buffer time at Greenbelt, New Carrollton, Beltway Plaza, rail platforms, bus bays and school/shopping-area travel windows.
Official P20 Timetable PDF · Official P20 Route Profile PDF · P20 busETA