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NHTSA ADAS Collision Information Evaluation

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On June 15, 2022, the Nationwide Freeway Visitors Security Administration (NHTSA) launched a whole lot of collision knowledge for L2 Superior Driver Help Methods (ADAS) automobiles and Automated Driving System (ADS) automobiles, which gives L2, L3, and L4 knowledge. A earlier column regarded on the ADS knowledge.

This column seems on the L2 ADAS data from the NHTSA and can summarize the NHTSA ADAS data from the paperwork listed beneath. I additionally embrace some quarterly Tesla collision knowledge that’s obtainable on-line.

The statistics cowl July 2021 by Might 15, 2022. The NHTSA plans to launch related knowledge month-to-month. You possibly can obtain a number of datasets instantly from the NHTSA:

NHTSA L2 ADAS Information

The NHTSA launched three knowledge units. The ADS, or L3 and L4, knowledge features a abstract of knowledge in a PDF file and detailed incident data in an Excel file. There are 130 incidents from July 2021 to Might 2022. ADAS or L2 data is the second knowledge set and is the main target of this column.

The third or “Different” knowledge set has many incidents, however few have detailed data. It was additionally coated within the ADS–centric column.

The NHTSA supplied a 9–web page abstract of the L2 ADAS knowledge with a number of helpful figures which are included on this column. The information covers 392 collisions from July 2021 to Might 15, 2022.

There’s additionally an Excel file with detailed data on all L2 ADAS collisions. The Excel file has 765 entries together with 373 duplicates that covers the 392 crashes. The duplicate entries are because of a number of fillings per incident due to NHTAS guidelines. Most fillings are crammed inside sooner or later and/or 10 days, plus updates when new data can be found.

The spreadsheet entry has detailed collision data with as much as 122 columns of information. The Information Component Definition file explains what every column means (linked above). Helpful data earlier than the crash, in the course of the crash, and after the crash are requested, together with car actions, climate and lighting circumstances, street circumstances, location coordinates, collision severity, car injury areas, addresses, and extra. Private and associated data in addition to firm proprietary are redacted.

There are fields inside the Information Component Definition file, nonetheless, that lists the ADAS data, however few entries have significant knowledge. As an illustration, the ADAS model is one area, however the subsequent area marks the ADAS model as confidential enterprise data. Tesla and Ford redacted their ADAS model fields.

For instance, the “Narrative” area could include glorious data as a result of it’s the largest area at 4,000 characters and should include a protracted description of a crash. Each Tesla and Ford, nonetheless, had this area redacted.

L2 ADAS crashes by reporting entities

The next determine summarizes the names of the car firms reporting crashes. The information is from a determine on web page 5 positioned within the NHTSA L2 ADAS abstract report.

L2 ADAS crashes by reporting entity (Supply: NHTSA ADS SGO Report, June 2022) (Click on picture to enlarge)

Tesla has probably the most L2 ADAS automobiles driving on U.S. roads and therefore it’s not a shock that it has probably the most collision experiences. My evaluation of Tesla battery electrical car deliveries within the U.S. provides an estimate of 1.4 million L2 automobiles in use on the finish of 2021 and is prone to prime greater than 2 million on the finish of 2022. We have no idea what portion of those automobiles are utilizing the Tesla Autopilot and the way usually it’s used.

Different knowledge factors are Tesla’s announcement of what number of miles have been coated with Autopilot in use. In November 2016, Tesla stated Autopilot coated 300 million miles, which elevated to 1+ billion miles in November 2018. The final public knowledge level was 3+ billion miles in February 2020.

If I scale this at an identical price, present Tesla Autopilot cumulative miles can be round 6+ billion because the variety of Tesla Autopilot automobiles have greater than doubled since February 2020. These Autopilot numbers are on a worldwide foundation, however the U.S. will account for effectively over 50%.

Moreover, the Tesla Autopilot can be utilized on highways and in metropolis driving. Most different L2 ADAS methods can primarily be used on highways.

Honda has the second most collisions with 90, which is surprising. The ADAS spreadsheet contains Honda and Acura fashions starting from mannequin yr 2015 to 2022. It appears among the collisions listed for Honda, nonetheless, are L1 ADAS automobiles.

L2 ADAS crashes by state

The NHTSA additionally supplied statistics on which states had probably the most L2 ADAS collisions. The subsequent determine is a duplicate of the NHTSA’s pictorial state abstract. California is the overwhelming chief with 125 collisions, or 33% of complete collisions. California had extra collisions than Florida, Texas, New York, Pennsylvania, and Ohio mixed.

Florida, Texas, and New York reported 34, 33, and 30 collisions, respectively. Pennsylvania and Ohio reported 13 and 12 collisions, respectively.

L2 ADAS crashes by state (Supply: NHTSA ADS SGO Report, June 2022) (Click on picture to enlarge)

L2 ADAS crashes by damage severity

The subsequent determine reveals the severity of reported collisions. Sadly, 294 collisions (75%) of the entire haven’t any knowledge obtainable. In 46 instances there have been no accidents, which is 47% of the crashes with severity response.

L2 ADAS highest damage severity (Supply: NHTSA ADS SGO Report, June 2022) (Click on picture to enlarge)

Minor accidents occurred in 19 collisions or 19% of severity response crashes. Reasonable accidents contributed 22 collisions or 22%. Critical accidents occurred in 5 instances or 5%. There have been six fatality collisions.

What did L2 ADAS automobiles collide with?

The subsequent desk reveals NHTSA knowledge on what the L2 ADAS automobiles collided with. The desk has two knowledge units — complete collisions from the NHTSA ADAS abstract and Tesla collisions, which I extracted from the ADAS Excel file.

L2 ADAS collision by object (Information supply: NHTSA; Desk evaluation: Egil Juliussen) (Click on picture to enlarge)

Whole crashes with different automobiles reached 116 or practically 30%. Tesla had 92 collisions with different automobiles, which is almost 34%. Passenger automotive crashes reached 62 or 16% of the entire collisions. Tesla has 51 collisions concerned with passenger automobiles or practically 19%. There have been two crashes with First Responder Automobiles — each have been by Tesla automobiles.

The variety of crashes with mounted objects embrace poles/timber at 20 collisions and different mounted objects at 78 collision for a complete of 98 collisions, which accounts for 25% of all collisions. Tesla’s equal knowledge was 77 collisions or 28% of complete crashes. These percentages appear on the excessive facet. Does this imply that L2 automobiles have hassle recognizing mounted objects? And by extension, L3 and L4 could have related points?

The crashes with folks and animals reached 14 or 3.6% of all collisions. Tesla had 5 crashes with folks and animals (1.8%).

Tesla had a decrease proportion of unknown crashes at 31% versus 37% for all firms. That is most likely because of telematics methods, cameras, and speedy knowledge extraction by Tesla.

L2 ADAS car injury

The subsequent desk reveals NHTSA knowledge on L2 ADAS car injury. The desk has two knowledge units — complete collisions from the NHTSA ADAS abstract and Tesla collisions, which I extracted from the ADAS Excel file.

It’s common {that a} car will obtain injury in a number of areas. Therefore, the sums of the injury counts are larger than the entire variety of collisions. After I analyzed the Tesla knowledge, I discovered 80 entries that didn’t have any injury data and may have been marked as unknown. This additionally modified the unknown depend for all automobiles.

L2 ADAS car injury (Information supply: NHTSA; Desk evaluation: Egil Juliussen) (Click on picture to enlarge)

I’ve targeted on the sum of the three entrance areas and three rear areas. I believe the relative ratio between these two segments gives some details about the fault of the collision. The excessive crash proportion of rear space injury signifies low fault price of the ADAS car. The excessive collision proportion of entrance space injury signifies excessive fault of the ADAS car.

The odds of entrance and rear damages have been calculated with unknown crashes included and excluded. I believe excluding unknown crashes is a greater indicator of collision faults.

With unknowns included within the calculations, the injury of entrance areas account for 53.3% of all automobiles whereas injury for rear areas was 13.1%. The equal figures for Tesla have been 26.2% for entrance areas and 21.7% for rear areas.

With unknowns excluded from the calculations, the injury of entrance areas added as much as 70.6% of all automobiles whereas injury for rear areas was 17.4%. The corresponding knowledge for Tesla was 44.8% for entrance areas and 37.1% for rear areas. This knowledge could be discovered within the two final strains within the above desk.

This knowledge signifies that Tesla L2 ADAS automobiles could be performing higher than different L2 ADAS automobiles by way of who’s at fault within the collisions. That is difficult, nonetheless, and there could be different components at work.

There’s a current report that claims Tesla is just not reporting all L2 ADAS crashes. This report says over 70% of all Tesla crashes involving L2 ADAS relate to Full Self–Driving software program.

Tesla proprietary crash knowledge

Tesla has launched its personal security knowledge on a quarterly foundation since Q3 2018. The most recent knowledge is This fall 2021.

Tesla relied on the next methodology for its knowledge assortment:

  • Tesla collects miles traveled by every car with Autopilot energetic or in handbook driving.
  • Tesla additionally acquired crash data anytime a crash is reported from the fleet, which could embrace knowledge about whether or not Autopilot was energetic on the time of affect.
  • Tesla counts any crash during which Autopilot was deactivated inside 5 seconds earlier than affect and counts all crashes during which the incident alert indicated an airbag or different energetic restraint deployed. This correlates to just about any crash at about 12 mph (20 kph) or above, relying on the crash forces generated.
  • Over 35% of all Autopilot crashes happen when the Tesla car is rear–ended by one other car.

Way more crash particulars are wanted to check the Tesla knowledge with the NHTSA’s collision statistics. There is no such thing as a knowledge on what number of crashes the Tesla fleet have been concerned in or what number of miles have been pushed throughout every quarter.

From the web knowledge, Tesla present three measures of its crash and hearth knowledge:

  • Common miles pushed between crashes for all Tesla automobiles utilizing handbook ADAS.
  • Common miles pushed between crashes for all Tesla automobiles utilizing Autopilot.
  • Common miles pushed between fires for all Tesla automobiles — yearly knowledge solely.

The subsequent desk is a abstract of Tesla’s on-line knowledge. There is no such thing as a knowledge for 2022 but.

Tesla crash and hearth knowledge between 2018 and 2021 (Information supply: Tesla; Desk evaluation: Egil Juliussen) (Click on picture to enlarge)

In keeping with Tesla’s knowledge, the typical miles between crashes for Tesla Autopilot automobiles are a lot better than for Tesla automobiles with energetic security or ADAS options. Throughout 2021, Autopilot automobiles have 2x to 3x higher crash knowledge than ADAS automobiles. There is no such thing as a further knowledge, nonetheless, to offer higher views on this pattern.

For This fall 2021 crash comparisons, Tesla quotes NHTSA knowledge that reveals one vehicle crash for each 484,000 miles pushed. This knowledge level is near 2019 NHTSA statistics — complete automobiles miles pushed (3.262 billion) divided by complete police reported crashes (6.76 million).

For hearth comparisons, Tesla quotes knowledge from the Nationwide Fireplace Safety Affiliation and U.S. Division of Transportation that reveals within the U.S. there’s a car hearth for each 19 million miles traveled.


There’s a whole lot of data from the NHTSA’s ADAS knowledge, however there’s a lengthy method to go to get actionable statistics. We particularly want car miles travelled to get higher evaluation of each L2 ADASL2 and ADS enchancment traits. Possibly the redacted knowledge would add extra helpful data.

When month-to-month knowledge turns into obtainable, there’ll hopefully be much less redacted knowledge and higher knowledge within the 122 obtainable fields of knowledge. Much less redacted knowledge within the “Narrative” area and the ADS/ADAS model area can be particularly helpful.

Long run, we want NHTSA to collect three sorts of knowledge as an mixture for all auto OEMs and associated service suppliers:

  • Collisions by key classes: L2, L3, L4, and ultimately L5. At the very least yearly and ideally quarterly.
  • Miles pushed by key class: L2, L3, L4, and ultimately L5. At the very least yearly and ideally quarterly.
  • Collision severity crash experiences — together with accidents and property injury–solely crashes.

Combination knowledge must be public knowledge. Related knowledge for particular person firms can be nice however would seemingly meet robust resistance from most auto OEMs. Such knowledge will enable us to trace the enhancements of ADAS and ADS know-how to see what works greatest.



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