Portfolio

EDAR North American Case Studies

Connecticut


HEAT conducted on-road remote sensing emissions testing surveys in 2014, 2016, and 2018 for Applus Technologies and the State of Connecticut Department of Motor Vehicles (DMV) as part of their biennial reporting to the USEPA, as specified in 40CFR §51.351 and §51.371. The EDAR system is used to measure the required pollutants and collect associated data such as speed, acceleration, license plates, and vehicle type; among many other variables.

One of the unique results in the 2014 survey was concrete evidence that EDAR can measure the temperature of the exhaust gases, not the temperature of the tailpipe. Therefore, EDAR can estimate instantaneous hot running fleet mass emissions rates, while alternative remote sensing technology can only measure concentrations of pollutants. The hot running mass emission rates can be combined with the fleet pollution and vehicle miles travelled to generate a hot running emissions inventory for the entire fleet. This is used to evaluate what portion of the fleet has the highest contributions of hot running exhaust emissions by pollutant.

A report is written each year with the results of the survey. The reports from 2014, 2016, and 2018 are available at CT.gov.




Arizona


In 2020 HEAT was awarded a 3-year pilot program to detect on-road emissions in Arizona! This large-scale program is slated to begin in the fall of 2020 at locations in Phoenix and Tucson. ----

Additionally, HEAT has also performed the remote sensing surveys in the Phoenix inspection maintenance area in 2015, 2016, 2017, 2018, and 2019 as defined in the Arizona Revised Statute §49.541. HEAT is required to test 15,000 vehicles per inspection cycle of Arizona registered vehicles as part of the requirement of CFR §40-51.351(b) for enhanced inspection maintenance. HEAT deploys the EDAR system utilizing a specialized transportable mount system at an average of six to eight temporary locations around the Phoenix area each year to collect emissions measurements. HEAT has completed the collection and analysis for these surveys and will be performing this work again in 2020.

----

Furthermore, HEAT holds a contract for Technical Services in the state of Arizona as well. The goal of this contract is to investigate emissions production from a variety of mobile sources. HEAT may be required to perform emissions testing and evaluation of various mobile sources, including a plethora of fuel types formulated for use with on-road vehicles or off-road engines, equipment, or vehicles on an on-call basis. Testing, analysis, and modeling may be required.

Types of questions the State of Arizona would like examined included:

  1. What is the effect of an accelerated low emission vehicle program on emissions in metropolitan Phoenix?

  2. What is the emissions benefit and technical viability of an accelerated program for installing NOx absorbers and particulates traps on heavy duty diesel off-road vehicles and on heavy duty on-road vehicles?

  3. What are the differences in MOVES or MOBILE6 output between national default vehicle fleet characteristics, approximate local fleet characteristics, and vigorous local fleet characteristics?




Nevada


HEAT performed a remote sensing survey in the Clark County Inspection and Maintenance area in April 2019 and August 2019 to satisfy the State of Nevada’s 2018 and 2019 40CFR requirements. HEAT was required to test a minimum of 20,000 valid vehicles at 5 locations around Las Vegas. HEAT deployed the EDAR system utilizing the specialized, highly moveable transportable mounting system that is simply pulled into place and left to run unmanned. HEAT completed the collection and submitted the data to the Nevada Department of Motor Vehicles (DMV) for further reporting.




Pennsylvania


HEAT performed the 40CFR survey for the State of Pennsylvania Department of Transportation in July 2019. According to EPA Rules at 40CFR §51.371(a)(1)(3), on-road emissions testing is not required on every vehicle or season. However, the requirement includes the testing of at least 0.5% of the subject vehicle population, or 20,000 vehicles; whichever is less. In the case of Pennsylvania, 20,000 vehicles is less. The on-road survey is required to test 20,000 vehicles per inspection cycle of valid remote sensing records of Pennsylvania registered vehicles out of its normal periodic testing cycle, for Hydrocarbons (HC), Carbon Monoxide (CO), Nitrogen Oxides (NOx) and Carbon Dioxide (CO2). The on-road emissions testing data is then compared to the most recent periodic test data for program evaluation. HEAT is set to perform the annual survey again in 2020.




Tennessee


HEAT’s remote sensing inspection program is implemented to fulfill the needs of the Nashville Vehicle Emissions Testing (VET) enhanced program by implementing an Express Screen program that provides motorist convenience and includes:

  • Deploying a network of EDAR remote sensing units on selected roadways in Nashville

  • Developing, implementing, and operating an online vehicle inspection data system that seamlessly interacts with existing data infrastructure

  • Working with subcontractors and local permitting authorities to assess, install, and operate roadside remote sensing testing sites

  • Implementing a public education and awareness campaigns for motorists to understand how they can participate

HEAT’s remote sensing units (EDAR) measure emissions as vehicles drive down the road. This allows motorists to avoid having to go to a centralized testing facility and idling in long lines for an annual inspection. A Vehicle Inspection Database contains information pertaining to pass cut-points of vehicle emissions by model year. The pass decision is based on actual exhaust readings and is then communicated to the motorist.

Additionally, vehicle owners can access a list of EDAR locations via the Express Screen TN - EDAR Nashville website. Motorists can register online after driving by an EDAR prior to their registrations expiring. If a motorist receives a pass notification, they may then renew their registration online through the Express Screen website, opting to participate in the program instead of traditional testing.




Toronto


HEAT deployed the EDAR system in the Province of Ontario. In February of 2018, HEAT successfully completed a pilot program with the Ontario Ministry of the Environment and Climate Change to assess the overall emissions benefits of a remote sensing program in Ontario.

During this project, HEAT was contracted to collect 25,000 valid measurements over the course of five days at five separate locations in the Toronto area. Measurements were collected at on-ramps and a multi-lane local roadway in Ontario. The project was performed in a comparable manner to a 40 CFR survey which utilizes EDAR on a specialized transportable mount system that is moved to a different location each day. The EDAR system measured the requested pollutants and collected associated data such as speed, acceleration, license plates, and ambient conditions for the Ministry.





EDAR European Case Studies

Connecticut


HEAT conducted on-road remote sensing emissions testing surveys in 2014, 2016, and 2018 for Applus Technologies and the State of Connecticut Department of Motor Vehicles (DMV) as part of their biennial reporting to the USEPA, as specified in 40CFR §51.351 and §51.371. The EDAR system is used to measure the required pollutants and collect associated data such as speed, acceleration, license plates, and vehicle type; among many other variables.

One of the unique results in the 2014 survey was concrete evidence that EDAR can measure the temperature of the exhaust gases, not the temperature of the tailpipe. Therefore, EDAR can estimate instantaneous hot running fleet mass emissions rates, while alternative remote sensing technology can only measure concentrations of pollutants. The hot running mass emission rates can be combined with the fleet pollution and vehicle miles travelled to generate a hot running emissions inventory for the entire fleet. This is used to evaluate what portion of the fleet has the highest contributions of hot running exhaust emissions by pollutant.

A report is written each year with the results of the survey. The reports from 2014, 2016, and 2018 are available at CT.gov.




Arizona


In 2020 HEAT was awarded a 3-year pilot program to detect on-road emissions in Arizona! This large-scale program is slated to begin in the fall of 2020 at locations in Phoenix and Tucson. ----

Additionally, HEAT has also performed the remote sensing surveys in the Phoenix inspection maintenance area in 2015, 2016, 2017, 2018, and 2019 as defined in the Arizona Revised Statute §49.541. HEAT is required to test 15,000 vehicles per inspection cycle of Arizona registered vehicles as part of the requirement of CFR §40-51.351(b) for enhanced inspection maintenance. HEAT deploys the EDAR system utilizing a specialized transportable mount system at an average of six to eight temporary locations around the Phoenix area each year to collect emissions measurements. HEAT has completed the collection and analysis for these surveys and will be performing this work again in 2020.

----

Furthermore, HEAT holds a contract for Technical Services in the state of Arizona as well. The goal of this contract is to investigate emissions production from a variety of mobile sources. HEAT may be required to perform emissions testing and evaluation of various mobile sources, including a plethora of fuel types formulated for use with on-road vehicles or off-road engines, equipment, or vehicles on an on-call basis. Testing, analysis, and modeling may be required.

Types of questions the State of Arizona would like examined included:

  1. What is the effect of an accelerated low emission vehicle program on emissions in metropolitan Phoenix?

  2. What is the emissions benefit and technical viability of an accelerated program for installing NOx absorbers and particulates traps on heavy duty diesel off-road vehicles and on heavy duty on-road vehicles?

  3. What are the differences in MOVES or MOBILE6 output between national default vehicle fleet characteristics, approximate local fleet characteristics, and vigorous local fleet characteristics?




Nevada


HEAT performed a remote sensing survey in the Clark County Inspection and Maintenance area in April 2019 and August 2019 to satisfy the State of Nevada’s 2018 and 2019 40CFR requirements. HEAT was required to test a minimum of 20,000 valid vehicles at 5 locations around Las Vegas. HEAT deployed the EDAR system utilizing the specialized, highly moveable transportable mounting system that is simply pulled into place and left to run unmanned. HEAT completed the collection and submitted the data to the Nevada Department of Motor Vehicles (DMV) for further reporting.




Pennsylvania


HEAT performed the 40CFR survey for the State of Pennsylvania Department of Transportation in July 2019. According to EPA Rules at 40CFR §51.371(a)(1)(3), on-road emissions testing is not required on every vehicle or season. However, the requirement includes the testing of at least 0.5% of the subject vehicle population, or 20,000 vehicles; whichever is less. In the case of Pennsylvania, 20,000 vehicles is less. The on-road survey is required to test 20,000 vehicles per inspection cycle of valid remote sensing records of Pennsylvania registered vehicles out of its normal periodic testing cycle, for Hydrocarbons (HC), Carbon Monoxide (CO), Nitrogen Oxides (NOx) and Carbon Dioxide (CO2). The on-road emissions testing data is then compared to the most recent periodic test data for program evaluation. HEAT is set to perform the annual survey again in 2020.




Tennessee


HEAT’s remote sensing inspection program is implemented to fulfill the needs of the Nashville Vehicle Emissions Testing (VET) enhanced program by implementing an Express Screen program that provides motorist convenience and includes:

  • Deploying a network of EDAR remote sensing units on selected roadways in Nashville

  • Developing, implementing, and operating an online vehicle inspection data system that seamlessly interacts with existing data infrastructure

  • Working with subcontractors and local permitting authorities to assess, install, and operate roadside remote sensing testing sites

  • Implementing a public education and awareness campaigns for motorists to understand how they can participate

HEAT’s remote sensing units (EDAR) measure emissions as vehicles drive down the road. This allows motorists to avoid having to go to a centralized testing facility and idling in long lines for an annual inspection. A Vehicle Inspection Database contains information pertaining to pass cut-points of vehicle emissions by model year. The pass decision is based on actual exhaust readings and is then communicated to the motorist.

Additionally, vehicle owners can access a list of EDAR locations via the Express Screen TN - EDAR Nashville website. Motorists can register online after driving by an EDAR prior to their registrations expiring. If a motorist receives a pass notification, they may then renew their registration online through the Express Screen website, opting to participate in the program instead of traditional testing.




Toronto


HEAT deployed the EDAR system in the Province of Ontario. In February of 2018, HEAT successfully completed a pilot program with the Ontario Ministry of the Environment and Climate Change to assess the overall emissions benefits of a remote sensing program in Ontario.

During this project, HEAT was contracted to collect 25,000 valid measurements over the course of five days at five separate locations in the Toronto area. Measurements were collected at on-ramps and a multi-lane local roadway in Ontario. The project was performed in a comparable manner to a 40 CFR survey which utilizes EDAR on a specialized transportable mount system that is moved to a different location each day. The EDAR system measured the requested pollutants and collected associated data such as speed, acceleration, license plates, and ambient conditions for the Ministry.





Hager Environmental &

Atmospheric Technologies (HEAT)

+1 865-288-7890

US Headquarters:

539 Milwaukee Way

Knoxville, TN 37932

Follow us
  • Twitter Clean
  • White Instagram Icon
  • w-facebook
  • White LinkedIn Icon
  • w-vimeo
nasa-logo.png

© 2019 by HEAT

Get in Touch