Tennessee

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Tennessee Mapping Resource Page.
Welcome to the Tennessee Waze wiki page. Tennessee is a part of the USA/South Atlantic region, which includes the states of:

Kentucky / North Carolina / South Carolina / Tennessee


Before editing the maps in Tennessee, 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.

Forum

To discuss current issues in Tennessee please go to the Tennessee Forum.

Cities and Towns

There are 346 Incorporated Cities and Towns in Tennessee. A list of municipalities in Tennessee is found here:
List of municipalities in Tennessee

Roads

See Road names/USA and Road types/USA for general guidelines for naming and classifying roads.

Classification

A road's type is arrived by a two step method that first uses classification via TDOT Functional Classification maps and secondly, Classification via Highway Type. A table based on these guidelines is given here. ,

Classification via TDOT Generated Functional Classification

The Tennessee Functional Class Map is updated by the the Tennessee Department of Transporation (TDOT). The TN Functional Class Maps come in two types, Rural and Urban. Each map shows roads into different road type classifications. The editor should check to see if a road is a Controlled-access highway to determine if it qualifies as a   Freeway .

Using the Functional Classification maps and checking the qualifiers on the road, the Corresponding Waze Road Type is determined via the following two tables:

Urban Functional Classification
TDOT Functional Class Qualifier Corresponding Waze Road Type
Urban Interstate None   Freeway 
Other Freeways and Expressways Controlled-access highway   Freeway 
Other Freeways and Expressways Non-controlled-access highway   Major Highway 
Urban Principal Arterial None   Major Highway 
Urban Minor Arterial None   Minor Highway 
Urban Collector None   Primary Street 
Rural Functional Classification
TDOT Functional Class Qualifier Corresponding Waze Road Type
Rural Interstate None   Freeway 
Rural Principal Arterial Controlled-access highway   Freeway 
Rural Principal Arterial Partially-limited-access road   Major Highway 
Rural Minor Arterial None   Minor Highway 
Rural Major Collector None   Primary Street 
Rural Minor Collector None   Primary Street 

If a road is not shown on the Functional Classification Maps, it is deemed as a Local Road with a Waze Road Type of   Street .

Inconsistent switching between road types along a road is not wanted. Consistency is key. Do not change a road type for routing sake or to make it appear on the map at a higher speed.

Sometimes strictly following these functional classification guidelines will generate inconsistent Waze road types at boundaries between urban and rural maps. It is best to use the aerial maps and GPS data to find a logical location where a road should make the change in road type. These types of changes are usually at intersections with other roads (primary street and above) and sometimes incorporate a change in lane count (2-lane road transitions to 4-lane road). Prudent editor discretion is needed at these locations.

Classification via Highway type

Sometimes a road will need to be upgraded if it is an Interstate, Federal Highway, or State Highway. The list below provides the minimum that a particular highway should be classified (e.g. a Urban Collector would be at a minimum a primary street, but it would be upgraded to a major highway if it was a US Highway or a minor highway if it were a State Highway).

  •   Freeway  - Interstates
  •   Major Highway  - US Highways
  •   Minor Highway  - State Highways, US Business Highways

Quick Reference Table

Refer to this chart to determine the road type of a given paved public road based on the TN functional class.

To use this chart, first determine the functional class of a road. Secondly, determine whether it is a signed, numbered highway in a particular highway system.

Where the column for the road's highway system and the row for the road's Tennessee functional class meet, you will find the proper road type for that particular road.

A number of examples are given below the chart.

Highway Systems
Interstate US Hwy US Hwy BUS, SPUR, LOOP State Hwy Locally-maintained
examples I-40, I-75, I-240, I-275 US-70, US-11E, US-31W US-412 BUS, US-11E BUS SR-1, SR-29, SR-155 Sam Cooper Blvd.
T
N

F
u
n
c
t
i
o
n
a
l

C
l
a
s
s
Rural Interstate   Fw  N/A N/A N/A N/A
Urban Interstate   Fw  N/A N/A N/A N/A
Other Freeways and Expressways
(Controlled-access highway)
N/A   Fw    Fw    Fw    Fw 
Other Freeways and Expressways
(Partially-limited-access road)
N/A   Major    Major    Major    Major 
Rural Principal Arterial
(Controlled-access highway)
N/A   Fw    Fw    Fw    Fw 
Rural Principal Arterial
(Non-controlled-access highway)
N/A   Major    Major    Major    Major 
Urban Principal Arterial N/A   Major    Major    Major    Major 
Rural Minor Arterial N/A   Major    Minor    Minor    Minor 
Urban Minor Arterial N/A   Major    Minor    Minor    Minor 
Rural Major Collector N/A   Major    Minor    Minor    PS 
Rural Minor Collector N/A N/A N/A N/A   PS 
Urban Collector N/A   Major    Minor    Minor    PS 
Local/not mapped N/A   Major    Minor    Minor    Street 

For example,

  • A State Highway that is a controlled-access highway classified as a Principal Arterial is a   Freeway .
  • A State Highway that is a partially-limited-access road classified as a Principal Arterial is a   Major Highway .
  • A US Highway classified as a Minor Arterial is a   Major Highway .
  • A US Highway Business Route route classified as a Minor Arterial is a   Minor Highway .
  • A State Highway classified as a Freeway is a   Freeway .
  • A State Highway classified as a Principal Arterial is a   Major Highway .
  • A State Highway classified as a Collector is a   Minor Highway .
  • A locally-maintained road classified as an Principal Arterial is a   Major Highway .
  • A locally-maintained road classified as a Collector is a   Primary Street .

Locking

Tennessee currently observes the following Locking Levels for Functional Classifications:

Segment Type Abbr. Lock
  Freeway  Fw 5
  Ramp  Highest lock of connected segment
  Major Highway  MH 4
  Minor Highway  mH 3
  Primary Street  PS 2
  Street  N/A Automatic (1)

Naming

Tennessee currently observes the following Standardized Name nomenclature for Numbered Routes:

Road Type Standardized Name
Freeways I-XXX
US Highways US-XXX
State Highways TN-XXX
County Highways CR-XXX


Regarding Local and Alternate Names:

In situations where a highway passes through a town, the road in those areas is typically named something other than the numbered route. In these situations the road should be named based on the following conditions: If the local street signs provide guidance with the local name, that should be used as the primary name in the Waze map. The numbered route should be added as an alternate name. If the local signs only indicate the route number, then that should be the primary name and and the local road name should be added as an alternate name.

Example: TN-13 in Waverly, TN has a Local Name of S Church St. (as indicated my signage). The Primary Street Name of the segments is S Church St., while TN-13 is listed as an Alternate Street Name.


Regarding Overlapping Highways:

When two or more numbered highways (or interstates) run concurrently (one stretch of road has multiple route numbers), the segment should be named after the primary of the routes. The primary route will usually have one or more of the following attributes: The route whose mile markers are used for the concurrent segment The route whose exit numbers are used for the concurrent segment When the concurrency ends, the route whose path does not get signed as a numbered exit.

State Highway Signage

State highways are divided into primary and secondary classifications and use a different type of signage for each:

  • Tennessee155.pngTennessee Primary State Route signage
  • Tennessee171.pngTennessee Secondary State Route signage

Map editors should not treat primary and secondary state highways different from each other when dealing with road types.

Lists of Highways in Tennessee

A spreadsheet of Tennessee Numbered Highways for tracking renaming to the TN-XXX standard.

Interstate and US Highways in Tennessee

State Highways in Tennessee

Mapping Resources - GIS Data

GIS Data for 87 of Tennessee's 95 counties can be found on the state property viewer website. The following counties are not available on that website but can be found on their own internet sites: Bradley, Davidson (Metro Nashville), Hamilton (Chattanooga), Knox (Knoxville), Montgomery, Roane, Rutherford (Murfreesboro), Shelby (Memphis), Sumner, Unicoi, and Williamson. Additional counties have information provided on their own county mapping website as well as the state mapping website. A cumulative list of all county-based GIS websites are given in the table below.

Anderson Greene Maury Robertson Tipton
Blount Hamilton McMinn Rutherford Unicoi
Bradley Hardeman Montgomery Sevier Washington
Cheatham Jefferson Putnam Shelby Williamson
Davidson Knox Roane Sumner Wilson

State Funded Construction Projects and Road Closures

TDOT provides media advisories on progress of the state-funded construction projects. The updates are broken into four regions, each providing a weekly update. Sometimes special construction events are given. For a current listing see Tennessee Road Closures and Weekly Construction Reports.

Places

Please follow general worldwide guidelines for mapping Places.

Please do not forget that a recent update to WME has enabled the Address properties for Places (City, State & Country) and ensure this information is filled out & correct to the best extent possible.

Locking

Place Type Minimum Lock Level
Gas Station 3
School 3

Special Roads

Non-Drivable Roads

Generally, if a road can't be driven on (i.e. Walking Trail, Pedestrian Boardwalk, Stairway, Railroad, Runway/Taxiway) then it should not be mapped in Waze. This is due to the way the routing engine works, as Waze WILL route users to drive on these "Non-Drivable" road types. Please note there are several Railroads mapped in Tennessee, these are due to users incorrectly running Waze while on the train & contributing false data to the system. This false data has been known to effect drivers on adjacent roads. These railroads are mapped in a VERY particular manner by Senior Area Managers and Country Managers to prevent Waze from routing on them.

Speed / Red Light Cameras

Red Light and Speed cameras are used in various municipalities throughout Tennessee. These municipalities include Memphis, Knoxville, Chattanooga, Germantown, Clarksville, Murfreesboro, Hixson, Red Bank, Morristown, Johnson City, Kingsport, and others.

There are also cameras mounted on traffic signals that are used as part of the signal control. These compare sequential images of the intersection approach to determine if there is a vehicle (car, truck, motorcycle, bicycle, etc) waiting and will trigger the sequence. These devices CAN NOT issue tickets.

There are traditional traffic monitoring cameras covering most of the major highways in the state. These send live video to TDOT & local media and serve ONLY as a traffic monitoring system.

How to Identify Cameras.

Additional Mapping Resources

Tennessee State Maps

Traffic and Construction Sources