_dta: 1. by Jean Roth , jroth@nber.org , 1 Sep 2016 ncicmake: 1. contains the polk standardized abbreviation for the oem's vehicle make one hundred pounds, as defined in the oem's specifications. label vinyear: 1. contains the marketing year defined by the oem within which the vehicle was produced. vehtype: 1. a polk assigned code that defines the type of a vehicle represented by a specific vin vintrim1_t: 1. the trim of the vehicle. this field is used when a vin pattern could have more than 1 trim assigned. vintrim2_t: 1. the trim of the vehicle. this field is used when a vin pattern could have more than 2 trims assigned. vintrim3_t: 1. the trim of the vehicle. this field is used when a vin pattern could have more than 3 trims assigned. vintrim4_t: 1. the trim of the vehicle. this field is used when a vin pattern could have more than 4 trims assigned. bodystyl: 1. a polk assigned code that describes the body style of the vehicle. for example, cp=coupe. wheels: 1. the number of wheel ends on the vehicle. for example in a 6x4 configuration this would be the 6. drivwhls: 1. number of wheels driven by the power train. for example in a 6x4 configuration this would be the 4. mfg: 1. (vehicle manufacturer name) standard abbreviation of the name of the vehicle manufacturer, i.e. general motors, as defined by the national crime information center mfg_t: 1. (vehicle manufacturer name) the name of the vehicle manufacturer, i.e. general motors, as defined by the national crime information center displci: 1. (displacement cid) displacement in cubic inches. this is a rounded, marketing value displcc: 1. (displacement cc) displacement in cubic centimeters. we intend to use this as the definitive, exact displacement value, i.e. 4967 cc. cylndrs: 1. contains a code that represents the number of cylinders a vehicle's combustion engine can have. cycles: 1. (cycle count) refers to the cycle or stroke of an engine. 2-strokes are lightweight and simpler, but they burn oil, by design. carbtype_t: 1. the description of the polk assigned code which identifies the vehicle carburetion type. for example carburetor, fuel injection, unknown or electric. gvwrange: 1. contains a code that identifies the polk standard groupings of gross vehicle weights to which a vehicle may belong. gvwrange_t: 1. the description for the manufacturers assigned gross vehicle weight (gvw) for trucks. whlbsh: 1. contains the distance between the front and rear axles of a vehicle in inches of the base model of the vehicle. whlblg: 1. contains the longest distance between the front and rear axles of a vehicle in inches for a particular series of that vehicle. psi_f: 1. (front tire pressure) vehicle mfr. recommendation for tire pressure, in pounds/sq. in. psi_r: 1. (rear tire pressure) vehicle mfr. recommendation for tire pressure, in pounds/sq. in. shipweight: 1. contains the base weight of the vehicle, rounded to the nearest one hundred pounds, as defined in the oem's specifications. label msrp: 1. contains the base price of the vehicle as designated by the oem's specifications. label drivetyp: 1. (drive type) this element describes type of driving configuration for cars and trucks such as fwd, awd, rwd. salectry: 1. (country sold / specific market) country where the vehicle is planned to be sold (may have different emissions standards). abs: 1. (brakes- abs code) a code that describes whether a vehicle has or does not have anti-lock brakes, and what kind of brakes they are. (not coded for heavy truck) drl: 1. (daytime running lights)a polk assigned code that identifies whether or not the vehicle has daytime running lights. rstrnt: 1. (restraint type) a polk assigned code that identifies the type of restraints that a vehicle has based on vin. tkcab: 1. (cab configuration) cab type describes the physical configuration of a truck's cabin. run tkaxlef: 1. (axle- type, front axle) the location of the front axle of a truck tractor. set forward increases stability on the highway, setback increases maneuverability in tight spaces. tkaxler: 1. (axle- type, rear axle) represents rear axle configuration on a truck tractor. tandem axles increase load bearing capability. tkbrak: 1. (brake type) the type of brakes on the vehicle (currently commercial truck only). engmfg: 1. (mfr.) a polk assigned code given to the original equipment manufacture of the within a vehicle tkduty: 1. (duty type) a polk assigned code that represents the duty type of a truck engine, based on manufacturer information. tkbedl: 1. (bed length) code representing the manufacturers description of the relative size of the cargo area of a pickup truck or van. segmnt_t: 1. description of segmentation_code that represents the polk standard segmentation applied. plntctry_t: 1. (country) this is the country where the plant is located. example values are usa, canada and japan. plntstat_t: 1. (state or province) this is the state or province (canada) location of the plant. dispclmt: 1. (displacement liters) displacement in rounded liters, where 1,000 cubic centimeters = 1 liter. enghead: 1. (head configuration) describes the cylinder head's camshaft/valve configuration. label battyp: 1. a value that identifies the kind of battery in the vehicle. for example: pba - lead acid, nmh - nickel metal hydride. battyp_t: 1. the description of the polk assigned code for the battery type code. for example: pba - lead acid, nmh - nickel metal hydride. batkwrtg: 1. the measure of total battery power expressed in kilowatts. for example: 71kw, 85kw, 75kw, 67kw. mcyusage: 1. a further breakdown of body style for motorcycles to indicate if is it on-road or off-road. mcyusage_t: 1. a further breakdown of body style for motorcycles to indicate if is it on-road or off-road. obs: 50,056 vars: 103 1 Sep 2016 18:17 size: 47,117,626 (_dta has notes) --------------------------------------------------------------------------------------------------------------- storage display value variable name type format label variable label --------------------------------------------------------------------------------------------------------------- state byte %8.0g state number st_case long %12.0g consecutive number veh_no byte %8.0g vehicle number ncicmake str4 %4s * contains the polk standardized abbreviation for the oem's vehicle make one hundr vinyear str4 %4s * contains the marketing year defined by the oem within which the vehicle was prod vehtype str1 %1s * a polk assigned code that defines the type of a vehicle represented by a specifi vehtype_t str18 %18s the description of the polk assigned code for the vehicle type code. vinmake_t strL %36s (make - name) full name of the make (i.e. chevrolet) vinmodel_t str24 %24s (model code) description vintrim_t strL %38s the trim of the vehicle vintrim1_t str31 %31s * the trim of the vehicle. this field is used when a vin pattern could have more t vintrim2_t strL %32s * the trim of the vehicle. this field is used when a vin pattern could have more t vintrim3_t str25 %25s * the trim of the vehicle. this field is used when a vin pattern could have more t vintrim4_t str14 %14s * the trim of the vehicle. this field is used when a vin pattern could have more t bodystyl str3 %3s * a polk assigned code that describes the body style of the vehicle. for example, bodystyl_t str26 %26s the description of the polk assigned code body style code for example: coupe doors str1 %1s the number of doors the vehicle has wheels str2 %2s * the number of wheel ends on the vehicle. for example in a 6x4 configuration this drivwhls str1 %1s * number of wheels driven by the power train. for example in a 6x4 configuration t mfg str4 %4s * (vehicle manufacturer name) standard abbreviation of the name of the vehicle man mfg_t str23 %23s * (vehicle manufacturer name) the name of the vehicle manufacturer, i.e. general m displci str4 %4s * (displacement cid) displacement in cubic inches. this is a rounded, marketing va displcc str4 %4s * (displacement cc) displacement in cubic centimeters. we intend to use this as th cylndrs str2 %2s * contains a code that represents the number of cylinders a vehicle's combustion e cycles str1 %1s * (cycle count) refers to the cycle or stroke of an engine. 2-strokes are lightwei fuel str1 %1s (fuel) what an internal combustion burns to move a piston in a cylinder fuel_t str26 %26s (fuel) description fuelinj str2 %2s the type of fuel injection fuelinj_t str12 %12s the type of fuel injection used by a vehicle. for example, direct, throttlebody carbtype str1 %1s carburetion types include "carburetor", "fuel injection", n/a carbtype_t str14 %14s * the description of the polk assigned code which identifies the vehicle carbureti carbbrls str2 %2s the number of barrels on a carbureted engine. gvwrange str1 %1s * contains a code that identifies the polk standard groupings of gross vehicle wei gvwrange_t str16 %16s * the description for the manufacturers assigned gross vehicle weight (gvw) for tr whlbsh str5 %5s * contains the distance between the front and rear axles of a vehicle in inches of whlblg str5 %5s * contains the longest distance between the front and rear axles of a vehicle in i tiredesc_f str1 %1s (front tire) more specific tire description (ex. michelin eagle p245/40zr) psi_f str1 %1s * (front tire pressure) vehicle mfr. recommendation for tire pressure, in pounds/s tiresz_f str3 %3s describes the size of the front tire. for example "17r245" tiresz_f_t str7 %7s (front tire size description) as in "17r245" tiredesc_r str1 %1s (rear tire) more specific tire description (ex. michelin eagle p245/40zr) psi_r str1 %1s * (rear tire pressure) vehicle mfr. recommendation for tire pressure, in pounds/sq rearsize str3 %3s the size of the rear tires. example '17r245' rearsize_t str6 %6s (rear tire size description) as in "17r245" tonrating str2 %2s (tonnage rating) description shipweight str5 %5s * contains the base weight of the vehicle, rounded to the nearest one hundred poun msrp str6 %6s * contains the base price of the vehicle as designated by the oem's specifications drivetyp str3 %3s * (drive type) this element describes type of driving configuration for cars and t drivetyp_t str23 %23s (drive type) description salectry str1 %1s * (country sold / specific market) country where the vehicle is planned to be sold salectry_t str16 %16s (country sold / specific market) description abs str1 %1s * (brakes- abs code) a code that describes whether a vehicle has or does not have abs_t str14 %14s (brakes- abs code) description security str1 %1s (security type) describes the security system (if any) installed on this model. security_t strL %39s (security type) description drl str1 %1s * (daytime running lights)a polk assigned code that identifies whether or not the drl_t str13 %13s (daytime running lights) description rstrnt str1 %1s * (restraint type) a polk assigned code that identifies the type of restraints tha rstrnt_t strL %50s (restraint type) description tkcab str3 %3s * (cab configuration) cab type describes the physical configuration of a truck's c tkcab_t str19 %19s (cab configuration) medium description. tkaxlef str2 %2s * (axle- type, front axle) the location of the front axle of a truck tractor. set tkaxlef_t str13 %13s (axle- type, front axle) short description tkaxler str1 %1s * (axle- type, rear axle) represents rear axle configuration on a truck tractor. t tkaxler_t str7 %7s (axle- type, rear axle) short description tkbrak str3 %3s * (brake type) the type of brakes on the vehicle (currently commercial truck only) tkbrak_t str9 %9s (brake type) description engmfg str3 %3s * (mfr.) a polk assigned code given to the original equipment manufacture of the w engmfg_t str15 %15s (mfr.) description engmodel str20 %20s (model) description tkduty str2 %2s * (duty type) a polk assigned code that represents the duty type of a truck engine tkduty_t str11 %11s (duty type) medium description. tkbedl str1 %1s * (bed length) code representing the manufacturers description of the relative siz tkbedl_t str8 %8s (bed length) description segmnt str1 %1s the polk standard segmentation code segmnt_t strL %41s * description of segmentation_code that represents the polk standard segmentation plant str1 %1s (plant code) plant code where vehicle was manufactured. plntctry_t strL %42s * (country) this is the country where the plant is located. example values are usa plntcity str24 %24s (city) this is the city where the plant is located. plntctry str3 %3s a code representing the country the plant is in plntstat str3 %3s a code representing the state or province the plant is in. plntstat_t str22 %22s * (state or province) this is the state or province (canada) location of the plant origin str1 %1s (origin) a code that indicates the origin of a vehicle. origin_t str29 %29s (origin) description dispclmt str4 %4s * (displacement liters) displacement in rounded liters, where 1,000 cubic centimet blocktype str10 %10s (block type) description enghead str4 %4s * (head configuration) describes the cylinder head's camshaft/valve configuration. enghead_t str24 %24s (head configuration) description vlvclndr str2 %2s (valves per cylinder) number of intake/exhaust valves per cylinder. vlvtotal str2 %2s (valves total) total number of intake/exhaust valves. engvincd str7 %7s (code) code derived from the vin (not the secondary vin for a motorcycle). incomplt str1 %1s indicator that signifies whether the vehicle is consider "incomplete" (y/n) battyp str7 %7s * a value that identifies the kind of battery in the vehicle. for example: pba - l battyp_t str20 %20s * the description of the polk assigned code for the battery type code. for example batkwrtg str6 %6s * the measure of total battery power expressed in kilowatts. for example: 71kw, 85 batvolt str5 %5s the voltage rating of the battery as provided by the manufacturer. supchrgr str1 %1s indicates if the engine has a supercharger or not. supchrgr_t str29 %29s indicates if the engine has a supercharger or not. yes, no or unknown. turbo str1 %1s indicates if the engine has a turbocharger. turbo_t str29 %29s indicates if the engine has a turbocharger. yes, no or unknown. engvvt str1 %1s used to determine if a car has variable valve timing. mcyusage str3 %3s * a further breakdown of body style for motorcycles to indicate if is it on-road o mcyusage_t str13 %13s * a further breakdown of body style for motorcycles to indicate if is it on-road o * indicated variables have notes --------------------------------------------------------------------------------------------------------------- Sorted by: st_case veh_no