From Wazeopedia

USA Maryland.png

This page serves as the primary resource for editors of Maryland. Review all the sections to better understand how the guidelines for this state might deviate from the overall USA or worldwide guidelines. If you have any comments or questions about this page or state refer to the community links below.

New speed limit guidance in the Major roads section below.


Maryland is a part of the Mid Atlantic region, which includes the states and/or territories of:

District of Columbia / Maryland / Virginia / West Virginia.

Mapping resources


Before editing the maps in Maryland, be sure to fully review and understand the editing manual.

The Waze user community follows the Waze etiquette guidelines discussed in the Wiki. Be sure to familiarize yourself with these guiding principals while editing the maps and this Wiki, as well as when communicating with other Waze users.

Functional classification

Please review the USA Functional Classification page and the FC Quick Reference Chart for details on this topic. In rare cases, a particular road may require a different type than prescribed in the national guidance. Before changing the type of any road past the bounds of the rules, please post the situation to the Maryland Forum to receive feedback. Maryland resources can be found in the following links:

SHA Highway Location Reference (PDF Reports by County)
MD SHA Functional Classification Map
nzahn1's Mapping Resources (2012, Google Earth)
Carroll County
Carroll County Function Classfication Webpage (2007)

Road names

Use these state-wide maps for the names and numbers of Interstate, US, and State highways. They also include the names of many local roads.

Tools to identify street addresses:

  • MD Finder: From the Layers list select "Parcel Points." Type in the full address (Street, City) then add "Parcel Boundaries" and/ or "Six-Inch Imagery." Click on the green "parcel point" to view address information.
  • MD Dept of Planning (merlin). Under the Contents tab, check Parcel Boundaries and uncheck all other options. Navigate to a property and click it, then click SDAT URL in the popup for the Real Property page.

Counties and cities

Use these maps for the names of local roads and smaller streets not identified on the state maps. Some also provide house numbers.


Error creating thumbnail: Unable to save thumbnail to destination

The Waze forum is a great place to find answers to previously asked questions and also a place to ask new ones. Below are links to the forums specific to Maryland.

Area Managers for Maryland can be found in the table below.

New editors should consider checking into the formal mentoring program available at no charge.

Cities and towns


One of the most common errors when editing the maps is when an editor creates a road and does not confirm the road by setting the city and road name (or stating it has none).

Duplicate cities can be caused by incorrectly named segments and should be corrected following the guidelines in the duplicate cities article.

There are 157 incorporated places in Maryland. When assigning the city name to a road segment or landmark, use the name of the incorporated place or CDP (census-designated place). If it is outside the boundaries of either of those, set the city name as None. Do not use the names associated with ZIP codes or the name of a neighborhood, community, or subdivision not included on the census map. If the road type is Freeway, set the city as None (except in Baltimore City), regardless of the location, as this helps with routing. Be sure to also set the city name of any alternate names correctly. Please discuss any deviations from this guidance in the Maryland Forum.

Overlay the above boundary file(s) with the WME Geometries Plugin. Load the files in WME from the "Areas" tab; turn on the Roads Layer (to reference existing CDP/ City names) and the cities layer (to view which WME city boundary may need to be modified).

Major roads

4lane road icon.png

Maryland follows the general road naming and road type guidelines of the USA.

Locking Rank

In Maryland we have a set minimum standard for locking roads based on segment type. Any road of a certain segment type must be locked at least to the rank (level) in the chart below. Roads may be locked higher for protection and special situations (areas with construction, tricky design, frequent mistakes, imaging inaccuracies, and the like), but should not be locked lower.

A great time to implement these locks is while bringing the road types of an area into compliance with the current US road type standards (FC and highway systems). Lock the roads based on type after they've been set to current US road type standards.

Maryland Minimum Locking Rank Standard
Segment Type Two-Way  One-Way
 Freeway  5
 Ramp  4
 Major Highway  4
 Minor Highway  3
 Primary Street  2 3
 Street  1 2
 |-|-|-|-|-|-|-|-|-| Railroad |-|-|-|-|-|-|-|-|-|  2
 • • • • Ferry • • • •   5

Note that these are minimums and, for protection, certain segments may be at higher lock levels. If you find a road locked to a higher level than its minimum, please leave it locked no lower than that level when you have finished editing.

Speed Limits

Speed Limit 70.png

Maryland follows the national guidelines for adding speed limits to the map. There are a few items left up to local guidance which will be enumerated below.

Maryland law

Maryland law includes the following restrictions on the designation of speed limits. [1]

  • Maximum speed limits are as follows, unless otherwise signed/posted:
District Highway Type
Undivided Divided
Business 30 mph
Residential 30 mph 35 mph
Other Locations 50 mph 55 mph
  • Speed limits may be revised after a traffic study and then posted, but no limit may exceed 70 mph
  • Maximum speed limits for local jurisdictions include:
  • 15 miles an hour in alleys in Baltimore County

National guidance recap

  • The ONLY speed limits which should be added to the map are Regulatory Speed Limits. These are marked with black lettering on white rectangular signs.
  • Advisory Speed Plaque.png
    'Advisory' or speciality speed limits that are unsupported by the WME and the Waze app, and MUST NOT be added to road segments in the WME, including:
  • Advisory speeds
  • Truck speed limits
  • Night speed limits
  • Time day plaque.png
    Segments with time based different speed limits should use the speed limit which is in effect the majority of the time (most hours of the day, days of the week).
  • Speed limits should change where they legally go in effect. When a speed limit changes in the middle of a segment, a new junction should added to support the SL change. However a new junction should never be added for a SL if it will be within 200 feet of an existing junction, or potential junction.

Work zone speed limits

Work zone SL.png

A work zone (WZ) may have a lower advisory speed limit (SL) posted in black on orange Advisory Speed Plaque.png, or a regulatory speed limit posted in black on white with an orange "Work Zone" banner across the top Work zone SL.png.

We only consider the regulatory signs, and never map advisory speed limits.

  • Interim guidance in Maryland until the Speed Limit feature goes live to production to production in the client app.
  • Only add Work Zone SLs if they are anticipated to persist more than a year.
  • For projects expected to last less than a year:
    1. Add the regular underlying SL to the segments
    2. Document the WZ SL as a [NOTE] UR with the keyword mph included in the text.
  • After the Speed Limit feature goes live in the production client app adding WZ SLs to segments will generally be allowed.
  • Typically only projects which are expected to last at least 3 months should be added to the map.
  • The underlying SL, and expected project completion date should be documented in a [CONSTRUCTION] UR with the keyword mph included in the text.
  • Projects of shorter duration may be added as well, IF the editor has access to frequent status updates on the project, and is willing to monitor and adjust as soon as the SL is restored.

Where speed limits change

The Maryland supplement to the MUTCD stipulates that: A Speed Limit sign in a speed zone shall be located at or just beyond the point where the zone begins. If the zone begins at an intersection, the first Speed Limit sign for that zone shall be the Speed Limit sign normally erected beyond the intersection conforming to the standard sequence of signs at intersections.[2]

Maryland is a state where the speed limits are absolute and are enforceable from statute; speed limits need-not be posted to be enforced.

When adding speed limits to WME we should try to be as accurate as reasonable, while still preserving data for turn delays. Therefore if a speed limit changes in middle of a segment we will create a new junction to support the SL change. However if there is already an existing junction, or we can see the need to create a new junction to connect another segment to the road within 200 feet of the speed limit sign, we should mark the SL change using that existing (potential) junction node.

If at the editor's discretion in consultation with local managers, it is determined that a new junction to support a SL change between 200 - 1,000 feet away from a junction would have a negative impact on turn delay calculations, they may instead affect the SL change at an existing (potential) junction up to 1,000 feet away from the SL sign. This may be because the SL change is posted in middle of turning or exit lane where traffic regularly backs up from the following junction to before the position of the SL sign.

Special roads

Drivable roads

Maryland follows the standard USA guidelines for all of the following special road types.

Non-drivable roads

Review the Wiki guidelines for non-drivable roads to ensure compliance with the general guidelines.


Maryland follows the USA Ferries guidance. There are four ferries active in Maryland:

White's Ferry

Hours: Mon-Sun: 5:00 am - 11:00 pm

Wicomico Whitehaven and Upper Ferries

Whitehaven PermaLink Upper PermaLink
Mon-Sun: March 1st to May 15th, 7am - 6pm
May 16th to September 15th, 6am - 7:30pm
September 16th to October 31st, 7am - 6pm
November 1st to February 28th, 7am - 5:30pm

Ferry TBR updated thru February 2017

Oxford Bellevue Ferry

Hours: 7 Days a Week; First Boat 9:00 a.m. Oxford; Last Boat Sunset
2016: April 23, 2016 to Mid-November (November is Sat/Sun only)

Ferry TBR updated thru April 2017


When managing a section of roadway under construction or being closed for a major event, follow the Wiki guidelines on construction zones and Real time closures.

Construction projects or emergencies that cause roads to be closed should be reported on this Closure Form. Events that cause road closures should be reported on this Event Form. Current closures and events in Maryland that have been reported to Waze are shown in the MD Closure Sheet.


Maryland follows the USA standard for Places. Do not deviate from the guidelines without first obtaining consensus to do so via the state forum linked on this page.


Not every camera-looking device at an intersection is a speed or red light camera. Generally speaking:

  • Camera2true.png
    Rlc truvelo speed cam.jpeg
    a speed camera takes a photograph of a vehicle when it passes by the camera at too high a speed.
  • Camera4true.png
    Rlc white.jpeg
    a red light camera takes a photograph of a vehicle that enters an intersection after the light is red. In some areas, it takes the photograph when a vehicle is not clear of the intersection some period after the light turns red.

Be sure to know your cameras before accepting new camera reports.

When adding a camera, be sure to review the camera placement recommendations.

Laws regarding speed and red light cameras vary between the states and territories, so be sure to understand the details of camera legality in Maryland.

Based on information researched at the time this page was created, the limited legality of speed cameras in Maryland is described below, and red light cameras are legal statewide in Maryland.

No other camera types should be mapped in Waze.

Speed cameras

Speed cameras are authorized for use in the following areas: school zones throughout the state, work zones on freeways and major highways, and on streets in Montgomery County. Speed cameras can be mounted to a pole, concealed in a metal cabinet on the ground, or mounted on a trailer or vehicle parked on the shoulder, such as these used in work zones. Most speed cameras in Maryland will not issue a ticket unless the vehicle is exceeding the speed limit by at least 12 mph; however, when setting the speed of a camera in the editor, use the speed limit of the road.

Many speed cameras are portable and moved on a regular basis, in some cases weekly. This is usually indicated on the website and may include a rotation schedule. These reported camera locations should not be on the map. However, if the speed camera is not portable or is not moved on a regular basis, then it should be on the map. Check the County-based links below.

Red light cameras

Red light cameras are authorized for use throughout the state. Please note that each red light camera fixture only records violations in one direction, so be sure to check which direction(s) are enforced, and include a camera in the editor for each applicable direction.

Some red light cameras also include radar, and enforce speed limits. This is especially true in Baltimore City.

The Wiki page for Waze Cameras states that, Speed limits "can also be set for a Red Light Camera if it monitors for Speed Limit Violations as well. Leave set to blank if speed is not monitored." However, this function has not been confirmed in the client.

Other camera types

These are cameras or signs that either provide driver feedback or are used for traffic control. These devices cannot issue tickets and should not be mapped. However TRAFFIC Cameras can be used to monitor emergency closures (for accidents, etc.) See below.

Camera location lists

These lists are posted for your reference, but should not be used to justify the approval of cameras in Waze Map Editor without first verifying the location and type of camera by other means, and that it is not part of a school zone speed camera program in a jurisdiction where the cameras are relocated on a regular basis. The lists may not be up to date, and may include all locations where cameras are permitted, but does not mean that a camera is present at that location at all times.

To do list

To do list.png

Many states and territories keep an active list of pending or closed actions that need to be done in the state by the editors. All editors are welcome to contribute to the list of activities.

Visit the Maryland/To do page for ways to contribute to the map.



The Waze Map Editor allows the enabling or restricting of U-turns using the green or red u-turn icons. U-Turns are legal in maryland with the following restrictions:

MD Transportation Code § 21-402(b) Vehicle turning left or making U-turn

(b) U-turn. -- If the driver of a vehicle intends to turn to go in the opposite direction, the driver shall yield the right-of-way to any approaching vehicle that is so near as to be an immediate danger.

MD Transportation Code § 21-602 U-turn on curve or crest of grade prohibited

(a) Curves. -- The driver of a vehicle on any curve may not turn to go in the opposite direction if the vehicle cannot be seen by the driver of any other vehicle that is within 500 feet and approaching from either direction.

(b) Crests. -- The driver of a vehicle on or approaching the crest of any grade may not turn to go in the opposite direction if the vehicle cannot be seen by the driver of any other vehicle that is within 500 feet and approaching from either direction.

Area Managers

The table below identifies the editors also designated as Area Managers or higher who are editing in Maryland. If you have any questions, please consider contacting them directly as needed. If you are an Area Manager that covers Maryland, or a USA Country Manager that does a lot of work in Maryland, please add yourself to this list (alphabetical by username) in the correct rank section.

The editor who also serves as the Regional Coordinator for Maryland is automatically listed at the top of the table. That editor may not be highly active in this state and therefore may not be listed separately in the table.

Maryland — Area, State and Country Managers
Regional Coordinator(s): CBenson (PM) and ply8808 (PM)
  GHO Display Name
Area Managed Comments
Country Managers (Mid Atlantic region)
(Add to or edit Country and State sections of table)
CBenson(6) [PM] Profile L6.png
  Carl B
Countrywide BadgeRC-Temp.pngBadge CountryManager.pngBadge GlobalChamp.pngBadge Mentor Global Champ.png
nzahn1(5) [PM] Profile L5.png
Avatar nzahn1.png
  Nick Z
Countrywide Badge CountryManager.pngBadge StateManager.pngBadge AreaManager.pngBadge Mentor.png
State Managers (Mid Atlantic region)
Kodi75(5) [PM] Profile L5.png
Avatar Kodi75.png
  David T
Countrywide Badge CountryManager.pngBadge StateManager.png
Area Managers
(Add to or edit this section)
TerryPurdue(5) [PM] Profile L5.png
Country Manager Badge CountryManager.pngBadge StateManager.pngBadge Mentor.pngBadge AreaManager.png
Baltimore - Washington Metro
subs5(5) [PM] Profile L5.png
Avatar subs5.JPG
  Alan B
Virginia Badge StateManager.pngBadge AreaManager.png
PG, MO, CH, CA, AA, and HO
Foxxymito(4) [PM] Profile L4.png Frederick, Carroll, Howard, Baltimore, Anne Arundel Badge AreaManager.png
Most active around Frederick City
jr1982jr(4) [PM] Profile L4.png
  Russ Z
Anne Arundel, PG, Baltimore City, Frederick, Washington, Allegany, Garrett, Northeast DC Badge AreaManager.png
Also: Howard, Baltimore and Montgomery
mtb2314(4) [PM] Profile L4.png
Avatar mtb2314.jpg
  Tom N
Montgomery County, MD, Boston, MA, and Davis, WV Badge AreaManager.png
Also: Howard, Frederick, and Baltimore in MD; Northwest Washington DC; and portions of VA and PA
Bugladen(3) [PM] Profile L3.png
Avatar BugLaden.jpg
  Eddie M
Carroll, Baltimore, Howard, Anne Arundel Badge AreaManager.png
Comstockmine(3) [PM] Profile L3.png Salisbury Area Badge AreaManager.png
JasonN899(3) [PM] Profile L3.png
Avatar JasonN899.jpg
  Jason N
Baltimore, Harford, Howard, Anne Arundel Badge AreaManager.png
Also: Around 695 & 95, Frederick & Carroll
MarkInMd(3) [PM] Profile L3.png Baltimore, Harford, Carroll Counties Badge AreaManager.png
Some Southern PA too
tckma(3) [PM] Profile L3.png
  Tom C
Carroll, Baltimore Badge AreaManager.png
Also: Howard, Frederick in MD; York, Adams in PA
ArthurUSCG(3) [PM] Profile L3.png
Avatar ArthurUSCG.jpg
  James A
St. Mary's County Badge AreaManager.png
baysidelass(2) [PM] Profile L2.png
Avatar baysidelass.jpg
  Suzanne H
Eastern Shore Badge AreaManager.png
mdswbkq(3) [PM] Profile L3.png
Mdswbkq 200.jpg
  Michael Sullivan
Portions of Frederick and Washington Counties Badge AreaManager.png
Also: NW Washington, DC, Montgomery County, Philadelphia area (limited), New York City area (limited)
LennyNRPD(3) [PM] Profile L3.png
Avatar Lenny.jpg
  Lenny Mathesius II
Calvert County, Upper Eastern Shore Badge AreaManager.png
Also: Anne Arundel; St.Mary's; Prince Georges; Charles; Baltimore; South DC

The following editors are also editing in the state and may be working towards an Area Manager position. Feel free to contact them for assistance in their respective areas.

Other Area Editors (Add to or edit this section)
Username General Editing Area Comments
MatthewStarbuck(3) [PM] Profile L3.png Virginia / Idaho Interstate Corridors / Montgomery Co
TwoEightZero(3) [PM] Profile L3.png Eastern Shore CBBT-Bridgeville DE
bimmer4WDrift(2) [PM] Profile L2.png Northern Virginia NoVA-MD-DC metro
markr4468(4) [PM] Profile L4.png
Western Maryland Large Area Manager - NE, Area Manager West Virginia OH

Other states and territories

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The other states and territories of the USA can be found in the navigation box below. Press the "show" button to open the box.

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