Proposal as adopted by the Working Party on General Safety Provisions (GRSG) at its 102nd session to reduce the blind spot on the passenger side of N2 and N3 (medium/heavy commercial) vehicles.

Document WP.29/2012/87 proposed changes to UN R46 to reduce the blind spot on the passenger side of N2 and N3 (medium/heavy commercial) vehicles as the draft 04 series of amendments to UN R46.

Proposal to clarify the provisions on the extended field of vision on heavy goods vehicles across different mirror classes. The text would require assessment of normal and extended fields of vision using a single mirror adjustment and to allow for the loss of up to 10% of the close-proximity field of vision in such configurations. The proposal would also clarify the transitional provisions and provisions for aftermarket devices.

Proposal clarify the scope and to allow for the type approval of camera-monitor systems installed in place of Class I through IV mirrors.

Proposal to clarify that fully integrated surveillance mirrors may be mounted below 2 metres in cases where they are integrated in a housing including one or more Class II or III mirrors.

Proposal to change the latency for scanning a field of vision (total process of scanning, rendering and reset to its initial position) from a maximum of 2 seconds to a maximum of 200 ms. This proposal corresponds to the current state of technology and removes a contradiction within the regulation between paragraphs 6.2.1.2. and 6.2.2.3.4.3. (the latter introduced via supplement 2 to the 04 series of amendments).

Proposal to clarify that overlays may only be used to convey “safety-related rearward vision information.” The proposal addresses confusion regarding circumstances under which the provision of information through overlays is permissible. The proposal also amends the French text. The overall proposal aims to make clear that overlays may convey safety information regarding the rearward environment of the vehicle and are not necessarily limited only to when the vehicle is moving in reverse. The proposal also aims to restrict the information to rear-vision safety. Other information, not related to the rear view, should never appear within the defined field of view. The proposal also corrects the omission of Class VII devices from the communication form described under Annex 3 of the regulation, as previously adopted for Revisions 5 and 6.

Proposal to correct paragraph 16.1.3.1. as follows: “The minimum and the average magnification factors of the CMS, in both horizontal and vertical directions shall not be lower than the minimum average magnification factors indicated below.” The latter reference to “minimum average” should be deleted since the subsequent text provides the required minimum and average magnification factors.

The proposal also corrects the cross-reference in paragraph 6.3.3.2. where “the test shall satisfy the conditions laid down in paragraph 6.1.3. of this Regulation” should refer to paragraph 6.1.1.3. and aligns the communication form with with the scope of the Regulation regarding vehicle categories (adding category L).

Proposal to introduce provisions for activation of a “temporary modified view” (such as change in image magnification or resolution) per ISO 16505:2015 to complement the static Class II field of vision using a Camera Monitoring System (CMS).

Proposal to enable the use of small indicative lines to assist the driver in discriminating among two or more fields of vision rendered as a combined continuous image on a display.

Proposal to allow the use of free form mirrors as an alternative to spherical mirrors.