Feature layer (hosted) containing Speed Limit & LRS Information.

This dataset contains estimates of the average number of vehicles that used roads throughout the City of Detroit. Each record indicates the Annual Average Daily Traffic (AADT) and Commercial Annual Average Daily Traffic (CAADT) for a road segment, where the road segment is located, and other characteristics. This data is derived from Michigan Department of Transportation's (MDOT) Open Data Portal. SEMCOG was the source for speed limits and number of lanes.The primary measure, Annual Average Daily Traffic (AADT), is the estimated mean daily traffic volume for all types of vehicles. Commercial Annual Average Daily Traffic (CAADT) is the estimated mean daily traffic volume for commercial vehicles, a subset of vehicles included in the AADT. The Route ID is an identifier for each road in Detroit (e.g., Woodward Ave). Routes are divided into segments by features such as cross streets, and Location ID's are used to uniquely identify those segments. Along with traffic volume, each record also states the number of lanes, the posted speed limit, and the type of road (e.g., Trunkline or Ramp) based on the Federal Highway Administration (FHWA) functional classification system.According to MDOT's Traffic Monitoring Program a commercial vehicle would be anything Class 4 and up in the FHWA vehicle classification system. This includes vehicles such as buses, semi-trucks, and personal recreational vehicles (i.e., RVs or campers). Methods used to determine traffic volume vary by site, and may rely on continuous monitoring or estimates based on short-term studies. Approaches to vehicle classification similarly vary, depending on the equipment used at a site, and may consider factors such as vehicle weight and length between axles.For more information, please visit MDOT Traffic Monitoring Program.

Lane Mile Description and Definition:Description An inventory of the total lane miles of Michigan state highway (trunkline). Another description could refer to it as a “striped lane mile inventory”. Lane Mile - Definition

One mile of roadway that is intended for drivingThe following is a detailed methodology and listing of features that were collected as part of the inventory:

All existing roadway lanes and their ever-changing (increasing/decreasing) number of drivable lanes were collected at the beginning and ending tapers/gores.

COUNTED

1 Lanes marked with the following:

-"Right Lane Must Turn Right" or "Left Lane Must Turn Left" sign

-Painted turn arrows, the word "Only" or the word "Turn"

-Lines forming a dedicated turn pocket

2 Passing flairs opposite a street entrance where traffic makes a left turn.

3 Turn lanes that appeared after a parking lane ended were counted from the first

"No parking this side of sign" sign, or the last parking spot.

4 Median left-hand turn lanes

5 Passing lanes

6 Exit (off) and Entrance (on) Ramp

-Subsequent lanes on ramps were also included

7
Flex Lanes

 -A shoulder used as a travel lane under

active traffic management systems

NOT COUNTED

1 Lanes marked with the following:

-Hash marks through the lane

-Raised pavement levels

-Poured curbs between the roadway and lane

-Non-MDOT concrete/pavement

2 Shoulders

3 Parking Lanes (Full or Part-time) Inventoried separately*

4 Bike Lanes Inventoried separately*

Speed Limit

· Speed limit of segment

Road Type

· Freeway (full access control): Express highway with no intersections

· Divided (partial or no access control): road on which traffic travelling in opposite directions is separated by a central strip

· Ramp (on or off)

· NFWC- Intersection design which replaces each left turn with a right turn and a U-turn. In other contexts, the intersection is called a median U-turn crossover or median U-turn· One-Way Pair: Pair of parallel, usually one-way streets that carry opposite directions of a signed route · Undivided- Single carriageway with at least one lane for each direction.Bike Lane Count

· 0,1,or 2 sides of segment that have bike lanes present

Sidewalks

·
0,1, or 2 sides of segment that have sidewalks present

On Street Parking

·
0,1, or 2 sides of segment that have on street parking present

Number of lanes

·
Number of lanes wide the segment is, 1-10 or 14

A map of wind speeds across Michigan at 120-meter elevation (m/s).A USA States Boundary layer was downloaded from the Census Bureau (last updated 2018). The Michigan attribute data was exported from this dataset to form a Michigan Boundary layer. Wind speed data at 120m elevation was downloaded from the National Renewable Energy Laboratory (NREL) (Wind Resource Maps and Data | Geospatial Data Science | NREL) (last updated in September 2017). The layer was clipped to the Michigan Boundary layer and then the raster layer was reclassified into five value ranges.NREL Dataset Citations:Draxl, C., B.M. Hodge, A. Clifton, and J. McCaa. 2015. Overview and Meteorological Validation of the Wind Integration National Dataset Toolkit (Technical Report, NREL/TP-5000-61740). Golden, CO: National Renewable Energy Laboratory.Draxl, C., B.M. Hodge, A. Clifton, and J. McCaa. 2015. "The Wind Integration National Dataset (WIND) Toolkit." Applied Energy 151: 355366.King, J., A. Clifton, and B.M. Hodge. 2014. Validation of Power Output for the WIND Toolkit (Technical Report, NREL/TP-5D00-61714). Golden, CO: National Renewable Energy Laboratory.Lieberman-Cribbin, W., C. Draxl, and A. Clifton. 2014. Guide to Using the WIND Toolkit Validation Code (Technical Report, NREL/TP-5000-62595). Golden, CO: National Renewable Energy Laboratory.

A map of wind speeds across Michigan at 60-meter elevation (m/s).A USA States Boundary layer was downloaded from the Census Bureau (last updated 2018). The Michigan attribute data was exported from this dataset to form a Michigan Boundary layer. Wind speed data at 60m elevation was downloaded from the National Renewable Energy Laboratory (NREL) (Wind Resource Maps and Data | Geospatial Data Science | NREL) (last updated in September 2017). The layer was clipped to the Michigan Boundary layer and then the raster layer was reclassified into six value ranges.NREL Dataset Citations:Draxl, C., B.M. Hodge, A. Clifton, and J. McCaa. 2015. Overview and Meteorological Validation of the Wind Integration National Dataset Toolkit (Technical Report, NREL/TP-5000-61740). Golden, CO: National Renewable Energy Laboratory.Draxl, C., B.M. Hodge, A. Clifton, and J. McCaa. 2015. "The Wind Integration National Dataset (WIND) Toolkit." Applied Energy 151: 355366.King, J., A. Clifton, and B.M. Hodge. 2014. Validation of Power Output for the WIND Toolkit (Technical Report, NREL/TP-5D00-61714). Golden, CO: National Renewable Energy Laboratory.Lieberman-Cribbin, W., C. Draxl, and A. Clifton. 2014. Guide to Using the WIND Toolkit Validation Code (Technical Report, NREL/TP-5000-62595). Golden, CO: National Renewable Energy Laboratory.