Blind Spot Information System R151 R151 Emark BSIS Emark


Blind Spot Information System European Type Approval
Turning manoeuvres involving collisions between trucks turning right and cyclists, typically occurring at lower driving speeds or standstill, usually have serious consequences for vulnerable road users (VRU). In the past, the safety of VRU was raised by an improvement of the truck driver's vision by increasing the number of mirrors and by equipping trucks with side under-run protection. Since turning accidents still happen and Blind Spot Information System (BSIS) have been introduced in a lot of vehicle segments, BSIS means a system installed on a truck to inform the driver of a possible collision with a bicycle near side, it is obvious to use such assistance systems for avoiding accidents between turning trucks and cyclists. 

The United Nations Economic Commission for Europe (UNECE) officially announced the technical regulations UN R151 related to the blind spot monitoring system. The UN R151 regulation has come into effect on November 15, 2019. Considering the international influence of the UNECE regulation, it can be foreseen to increase More countries will adopt UN R151 as the technical standard of their blind spot monitoring system. 

ATIC's experts are working under designated technical services in Europe to conduct Initial Assessment, Witness Testing and IA/CoP as authorized inspectors. Our authorities include E5 Sweden, E24 Ireland, E49 Cyprus, E32 Latvia and E36 Lithuania.

In China, our witness laboratories cover North China, Central China and South China. No matter where your products are produced, we can provide the nearest witness test site. If your factory laboratory meets the requirements of ISO17025, We can also perform witness tests in your factory and apply type approval certificate.

ATIC's industry-leading Digital Customer Platform and Digital Reporting System make it easy for you to submit Information Document online, and Technical Reports can be generated online, minimizing documentation and report preparation time and improving quality, leaving valuable time to you and your customer.
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General Steps
Initial Assessment
The first application for a manufacture to an authority generally requires initial assessment. In most of the cases ATIC experts will conduct the onsite initial assessment. Some authority can exempt onsite initial assessment by accepting ISO/IATF certificates.
Information Document
According to EU/UN Regulations information document including sufficient drawings of the vehicle/component shall be prepared and submitted to technical service by the manufacture/applicant. ATIC experts also can support manufacture/applicant to prepare information document based on CAD drawings and vehicle/component specifications.
Type Testing
In most of the cases ATIC experts will witness testing in 3rd party testing lab and draft technical reports. If the manufacture is equipped with competent facilities it's also possible to make witness testing using manufacture's facility
ATIC experts will conduct lab assessment before witness testing and draft lab assessment report.
Information Documents, Technical Reports as well as other technical documents if needed will be submitted to relevant authority. Authority will review and issue type approval certificate if all the documents, tests, drawings fulfill the regulations and requirements.A typical lead-time for this review process is 4 to 6 weeks.
After the approval the CoP audit/test maybe conducted based on regulations and authorities' requirements
Other Key Points
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R151 Emark BSIS emark
Blind Spot Information System
Blind Spot Information System (BSIS) means a system to inform the driver of a possible collision with a bicycle near side.

Near Side
Near side means the side of the vehicle near the bicycle. The near side of the vehicle is the right side for right-hand traffic. 

Bicycle means a combination of a bicycle and cyclist, the test device according to ISO [CD] 19206-4 .

Collision Point
Collision point means the position where the trajectory of any vehicle point would intersect with any bicycle points if a turn by the vehicle is initiated.

Impact Position
Impact Position means the location of impact of the bicycle on the right side of the vehicle with respect to the vehicle front right corner, when both vehicles have reached the collision point.
Blind Spot Information System
BSIS is a system installed on a truck that informs the truck driver of a possible collision with a bicycle on the near side so that the driver can take timely action to avoid a traffic accident. The system involves two types of alert signals, information signals and warning signals.

BSIS uses an optical information signal to inform the truck driver that there is a bicycle nearby. If the bicycle has been driving in a critical area where a collision may occur, the information signal will always remain to remind the truck driver. The information signal shall only be deactivated automatically in case of system failure or contamination of the sensors; a manual deactivation shall not be possible. This information signal shall be visible by daylight and at night. The device emitting the information signal shall be located at the near side at a horizontal angle greater than 30° towards an axis parallel to the longitudinal median plane of the vehicle and going through the ocular reference point.

Low intensity
Low annoyance if issued too often Lesser effect in steering driver's attention
> 30° to the right of the driver
Only automatic deactivation (ice, snow on sensors, ...)

Dynamic Test:
The truck and bicycle are both in motion and the bicycle enters a critical area of potential collision with the truck, but the truck driver does not yet have the intent to turn and an informational signal alert appears.

Static Test:
The truck is stationary, the bicycle is moving, the bicycle enters horizontally or vertically into a critical area where it may collide with the truck, and an information signal appears.
BSIS emark
The warning signal shall be activated at the earliest when the system detects a potential collision, e.g. by the intention of a turn towards the bicycle, e.g. by evaluating the distance between or trajectory intersection of vehicle and bicycle, direction indicator activation or similar. If it is the optical signal, this  signal shall be visible by daylight and at night. The warning signal is different from the information signal in the mode or start strategy. It is easy for the driver to understand and associate it with the potential danger. This warning signal can be manually or automatically deactivated. In the event of malfunction or sensor contamination, it disabled with the information signal.

If issued right, good effects in steering driver‘s attention
High annoyance if issued too often
Different to information signal in mode or activation strategy
Activation strategy decided by Vehicle Manufacturer ( manually or automatically deactivated )
not before collision becomes imminent

Dynamic Test:
Both trucks and bicycles are moving, the bicycle enters  a key area that may collide with the truck, and the truck  driver intends to turn. When BSIS evaluates the intersection of the trajectory or detects the operation of the turn indicator on the steering wheel, a warning signal appears to remind. The verification of the warning signal is achieved through technical document review.
Static Test:

The truck is stationary, the bicycle is moving, and the bicycle enters the key area that may collide with the truck horizontally or vertically, and an information signal or warning signal appears. The verification of the warning signal is achieved through technical document review.
BSIS emark
BSIS Testing Items
No. ItemsProvisions
Dynamic testing
Trucks: Stationary to 30km/h forward speed
Bicycle: 5 km/h -20 km/h
Bicycle dummy: reference ISO [CD] 19206-4
Only information signals are tested, no warning signals are involved
Static testing
Stationary truck
Bicycle: 5 km/h - 20 km/h parallel and perpendicular to the truck, respectively
Bicycle dummy: reference ISO [CD] 19206-4
Only information signals are tested, no warning signals are involved
3 Automatic deactivation testing
BSIS is automatically deactivated after ice, snow, mud or other contamination, and automatically restarted after the contamination is removed.
4Failure detection testing
Signal alert when BSIS is unavailable
5Optical failure warning signals verification testing
Information signal
Warning signal
Fault warning signal
6Electro Magnetic Compatibility (EMC)
The validity of the BSIS shall not be adversely affected by magnetic or electric fields to meet the requirements of R10.04.

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