Disclaimer
The data included in the Memphis Urban Area MPO’s Interactive Webmaps are intended to provide information on the Memphis MPO’s planning products. The data and information included in the maps have been carefully examined; however, errors or missing data may exist. The map does not replace or invalidate the plans or documents from which the information was derived. For more detailed information, please refer to specific agency websites. Data layer updates are performed as needed and with time permitting. This section includes the following Memphis MPO interactive webmaps:
- Primary Interactive Webmap
- Congestion Management Process (CMP)
- Observed Crashes Dashboard
Interactive Webmap
The primary webmap maintained by the Memphis MPO, this ArcGIS dashboard contains information on existing transportation facilities, planned projects, municipal boundaries, and the functional classification of roadways.
(Click the image below to visit the Memphis MPO Interactive Webmap)
Layers:
To show or hide any of the layers listed below, click the Layers icon in the top right corner of the map. (See image to the right)
- MPO Planning Area: The Memphis MPO’s Metropolitan Planning Area (MPA)
- Municipalities: The municipal or jurisdictional boundaries of a city, town, or agency in the Metropolitan Planning Area.
- RTP Project Points and RTP Project Lines: Projects included in the fiscally-constrained list of the Memphis MPO’s Moving Together: 2050 Regional Transportation Plan. Note that projects listed as "E+C" are "Existing and Committed", which means project(s) which are open to traffic, currently under construction, or are identified in the TIP with programmed construction funding. For more information, visit the Moving Together: 2050 RTP.
- TIP Project Points and TIP Project Lines: Projects included in the Memphis MPO’s FY2026-29 Transportation Improvement Program (TIP). For more information, visit the FY 2026-29 TIP webpage.
- Airports: Names and locations of all eight airports in the Memphis MPO area.
- Intermodal Freight Facilities: Names and locations of intermodal freight facilities which connect ports, airports, and railroads to the road network.
- Intermodal Passenger Facilities: Names and locations of transit centers and train stations operated by MATA, Amtrak, and intercity bus companies.
- Functional Classification: The federal system which identifies roads by their design and traffic levels as either Arterials, Collectors, and Local roads. For information on how each type of road is defined, see FHWA’s website.
Memphis MPO’s Congestion Management Process (CMP) Interactive Maps
Key Terms:
- Peak Hours of Excessive Delay (PHED) per Mile: The threshold for excessive delay is based on the travel time at 20 miles per hour or 60% of the posted speed limit travel time, whichever is greater, and is measured in 15-minute intervals. The annual hours of PHED per mile measure divides the total annual hours of peak hour excessive delay along a segment by the total length (in miles) of the segment.
- Level of Travel Time Reliability (LOTTR): LOTTR is defined as the ratio of the longer travel times (80th percentile) to a normal travel time (50th percentile), and segments with a ratio of 1.50 or higher are considered unreliable. This calculation is conducted during 4 time periods; 1) Weekdays 6 A.M.-10 A.M. 2) Weekdays 10 A.M.- 4 P.M. 3) Weekdays 4 P.M-8 P.M 4) Weekends 6 A.M. to 8 P.M. In order for a segment to be considered reliable, the LOTTR ratio must be below 1.50 for all four time periods.
- Truck Travel Time Reliability Index (TTTR): The TTTR ratio is generated by dividing the 95th percentile truck travel time by the 50th percentile truck travel time for each reporting segment. Reporting is divided into five periods: 1) Weekdays 6 A.M.-10 A.M. 2) Weekdays 10 A.M.-4 P.M. 3) Weekdays 4 P.M.-8 P.M. 4) Weekends 6 A.M.-8 P.M. 5) Overnights for all days 8 P.M.-6 A.M. The TTTR Index is generated by multiplying each segment’s largest ratio of the five periods by its length, then dividing the sum of all length-weighted segments by the total length of Interstate.
(Click the image below to visit the Memphis MPO’s CMP Interactive Maps)
For more information on the Memphis MPO's CMP and the metrics included in this map, visit the Congestion Management Process webpage.
Memphis MPO Observed Crashes Dashboard
The primary crash data webmap maintained by the Memphis MPO, this ArcGIS Experience Builder application contains information on crashes that occur within the Memphis MPO planning area. The data is approximate and for draft/informational purposes only. The following is a description of elements within the webmap.
(Click the image below to visit the Memphis MPO Observed Crashes Dashboard)
Layers:
- MPO Planning Area: The Memphis MPO’s Metropolitan Planning Area (MPA).
- Municipalities: The municipal or jurisdictional boundaries of a city, town, or agency in the Metropolitan Area; filterable by clicking the municipality name on the right side of the screen.
- Counties: The counties (Shelby County, DeSoto County, West Fayette County, and West Marshall County) within the Metropolitan area, filterable by using the “Filter” widget in the top right of the page.
- High Injury Network: The High Injury Network (HIN) is a network of designated corridor-level segments where the highest concentrations of collisions have occurred over a five-year period. The analysis considered all collisions resulting in death or serious injury that did not take place on Interstate highways, exit ramps, or major freeways/expressways, which aligns with the MPO's Safety Action Plan focus on fatalities and serious injuries, and accounts for jurisdictional control of specific roadway types.
- Crashes: Vehicle collisions within the Memphis MPO’s planning area are recorded by and sourced from the Tennessee Integrated Traffic Analysis Network (TITAN) and the Mississippi Safety Analysis Management System (SAMS).
