U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
TMAS 3.0 will read TMG formats 2001, 2013 and 2022 for motorized and 2016 and 2022 for micromobility
Fatal errors
no S or 1 in the 1st digit of the record
record length is less characters based on data type sent in
no station ID in the record
Critical errors occur if:
blank or invalid direction or lane
blank or invalid functional classification
blank or invalid state code
improper vehicle classification designated
(all critical errors are correctable in TMAS)
Caution flags include:
missing latitude/longitude
missing year established
missing route number
missing number of lanes for volume, classification, or weight
missing HPMS Sample (not for 2022 format), NHS or type of sensor
(all caution errors are correctable in TMAS)
Warning flags occur if:
any two records that have all digits being exact duplicates will have one record removed
any two records that are not exact duplicates within the batch but match same key fields.
User must select the appropriate proper record to utilize.
Note: 2022 TMG Station format is piped delimited only and the station ID can be from 6 to 20 digits. When utilizing 7 or more digits for the station ID, all other TMG formatted data must also be piped delimited.
Fatal errors occur if:
no 3 in the 1st digit of the record
record length is less characters based on data type sent in
no station ID in the record
no corresponding station in National Database
Critical errors occur if (by system or by station parameters accepted):
record includes 7 or more consecutive zero hours
every DOW (day of week) not present for the given site/month/year
record includes any zero hour volume with one or more boundary with over 50 vehicles
24 hours of data not in a given record
any hourly volume exceeds the max per hour per lane value
directional splits check show unbalanced directional volumes greater than 10% variance from 50%
Monthly Average Daily Traffic (MADT) from same month previous year not within 20% unless the state marks data as restricted column
when any 3 to 4 AM volume is >= 3 to 4 PM volume for the same station ID and day
identical count check – for any consecutive series of reported values there will be no more than 3 values in a row (values other than 0's) with the same values. This check is performed on the individual submitted resolution
Warning flags occur if:
any two or more records that have all digits being exact duplicates will have one record removed
any two records that are not exact duplicates within the batch but match same key fields.
User must select the appropriate proper record to utilize.
Fatal error occurs if:
no C in the 1st digit of the record
record length is less characters based on data type sent in
no station ID in the record
no corresponding station in National Database
Critical errors occur if:
volume checks done on all classification data – see volume section above
all classification data utilizes the station file algorithm for vehicle classification and classification system for vehicle classification for determining the length of the given record.
Caution flags occur if (by system or by station parameters accepted):
maximum percentage by classification by day check (done by direction)
historical check for 6 weeks of prior approved data based on the same DOW for each class of vehicle by day percentage variance from the incoming same DOW. Threshold value is utilized and when historical value is above the threshold the % is utilized. When below the threshold the number of vehicles for the given class being checked is utilized with 100%, 75% and 25% of the threshold value utilized in incremented lower values used from the threshold down to zero vehicles.
any historical quality control check where insufficient historical data is available
Warning flags
any two records that have all digits being exact duplicates will have one record removed
any two records that are not exact duplicates within the batch but match same key fields.
User must select the appropriate proper record to utilize.
Fatal error occurs if:
no T in the 1st digit of the record
record length is less characters based on data type sent in
no station ID in the record
no corresponding station in National Database
Critical errors occur if:
volume checks done on all classification data – see volume section above
if the associated weight data is loaded and the weight average tandem spacing check was within range then all speed checks don't need to be completed
historical 8 weeks check of 85% speeds with +/- 20% for same DOW
extreme low – over 10% or daily volume under 20 mph
extreme high – over 10% of daily volume over 85 mph
3 to 4 AM average speed is <= 3 to 4 PM average speed for the same station ID and day
all speed data utilizes the speed file speed data time interval, definition of first speed bins reported and total number of speed bins reported in the vehicle speed format for determining the length of the given record.
Caution flags occur if (by system or by station parameters accepted):
Note – TMAS 3.0 permits all vehicle classes to be submitted as weight data.
Fatal error occurs if:
no W in the 1st digit of the record
record length is less characters based on data type and class sent in
no station ID in the record
any record with more than 25 axles will not be kept in TMAS 3.0
Critical error occurs if:
none
Caution flags
total weight not equal to the sum of all axle weights
every axle weight not within acceptable range (100 lbs. to 50 kip)
any inter-axle spacing not within acceptable range (1' to 50')
sum of axle spacings by vehicle classification not within acceptable range
number of axles by vehicle class exceeded
historical average tandem weight check for 8 weeks of data using the average tandem weight for the same DOW by day by lane check based on class 9 vehicles
historical check for 8 weeks of data using the steering axle weight average (SAWA) by day by lane check based on the same DOW for class 9 vehicles
historical check for 8 weeks of data using the average tandem axle spacing (ATS) average by day by lane based on the same DOW for classes 8-13 vehicles
any historical quality control check where insufficient historical data is available
Warning flags
any record with between 13 and 25 axles will not be processed in TMAS 3.0 but will be placed in a special database.
any two records that have all digits being exact duplicates will have one record removed
Fatal error occurs if:
no I in the 1st digit of the record
record length is less characters based on data type and class sent in
no station ID in the record
Critical error occurs if:
none
Caution flags
volume checks done on all IVR data – see volume section above
class and/or speed checks done on all same associated data – see section above
every axle weight not within acceptable range (100 lbs to 50 kip)
any inter-axle spacing not within acceptable range (1' to 50')
sum of axle spacings by vehicle classification not within acceptable range
number of axles by vehicle class exceeded
left and right axle weight balancing checked (when Z variant reported) within +/- 20%
gap between vehicles (when 15' to 32') with class 6 and class 1 check – report when over 5 per day found
Warning flags
any record with more than 25 axles will not be processed in TMAS 3.0 but will be placed in a special database.
any two records that have all digits being exact duplicates will have one record removed
any two records that have all primary key digits and time stamp being exactly the same remove secondary record(s)
Fatal error occurs if:
no L in the 1st digit of the record
record length is less characters based on data type and class sent in
no station ID in the record
Critical error occurs if:
blank or invalid direction or lane
blank or invalid functional classification
blank or invalid state code
Caution flags
missing Latitude/Longitude
missing year established
missing route number
missing number of lanes for count
missing type of sensor
(all caution errors are correctable in TMAS)
Warning flags
any two records that have all digits being exact duplicates will have one record removed
any two records that have all primary key digits and time stamp being exactly the same remove secondary record(s)
Fatal error occurs if:
no N in the 1st digit of the record
record length is less characters based on data type and class sent in
no station ID in the record
Critical error occurs if:
no state FIPS code
no county FIPS code
no functional classification of road
no direction or location to the roadway code
Caution flags
historical check for 6 weeks of prior approved data based on the same DOW for each class of vehicle by day percentage variance from the incoming same DOW. Threshold value is utilized and when historical value is above the threshold the % is utilized. When below the threshold the number of vehicles for the given class being checked is utilized with 100%, 75% and 25% of the threshold value utilized in incremented lower values used from the threshold down to zero vehicles.
year over year MADT = 20% (same month for the prior year MADT +/- tolerance) consecutive zero's = 7(no overlapping days – any count interval consecutive 0's)
any zero adjacent hour check when over 50 (check both sides of any zero unless interval is first or last one for the day)
total hourly count (maximum) = 4,000 (sum all count intervals and directions for the hour)
total minimum daily count = 100 (sum all count intervals and lanes/directions for the day)
total maximum daily count = 10,000 (sum all count intervals and lanes/directions for the day)
multiple identical counts for any 3 consecutive identical counts – independent of time interval counted)
3 am to 4 am < 3 pm to 4 pmcomparison check
Warning flags
any two records that have all digits being exact duplicates will have one record removed
any two records that have all primary key digits and time stamp being exactly the same remove secondary record(s)
