Regarding seat belt and airbag use, simulations show steering column intrusion leaves little survival space even at low speeds, so focus should first address energy absorption and compatibility issues before restraint systems. Impact data from six countries (Denmark, France, Lithuania, Luxembourg, Serbia, and the UK) suggest that in 963 bus driver fatalities and severe injuries, severity could potentially have been reduced with improved frontal protection. Cost-benefit analysis should include injuries to small vehicles in collisions with buses. UN R29 and UN R93 should be considered; UN R93 could be amended to include M₃ buses. A real-life demonstration test with a bus is proposed to validate studies conducted.

Proposal to enable application to vehicles of category X (vehicles of category Y are not in scope) with amendments addressing steering wheel hub provisions, cab positioning, and seating requirements for vehicles of category X. Cabs for vehicles of category X mounted in other positions than vehicle front shall not be taken into account for frontal collision simulation.

Modifications to ECE/TRANS/WP.29/GRSP/2025/18

The report presented at GRSP in May referenced 3 different bus v. bus, low overlap front collisions, with fatal outcome
o Q: Did the buses involved comply with UN R 29 and/or UN R 93?
o A: None of the 6 buses involved in these accidents complied with UN R 29 or UN R 93

Proposal to enable application of the regulation to vehicles equipped with an Automated Driving System (ADS).

Proposal for the GRSP AVRS task force to enable application of UN R29 to ADS vehicles.

Proposal to enable the application of UN R29 to certain ADS-equipped vehicles.

Text from Germany on behalf of the GRSP AVRS task force to enable the application of UN R29 to vehicles equipped with an Automated Driving System.

Proposal to update references to the three-dimensional “H” point measurement and calibration procedure pursuant to the transposition of these provisions from the Consolidated Resolution on the Construction of Vehicles (RE3) to Mutual Resolution No. 1.

Revised proposal based on document GRSP/2024/7 to update references to the three-dimensional “H” point measurement and calibration procedure pursuant to moving such provisions from the Consolidated Resolution on the Construction of Vehicles (R.E.3) to Mutual Resolution No. 1.

Proposal to update references to the three-dimensional “H” point measurement and calibration procedure pursuant to the transposition of these provisions from the Consolidated Resolution on the Construction of Vehicles (RE3) to Mutual Resolution No. 1.

Discussion on the introduction of technical requirements applying to the bus front to reduce the extent of damage and injury in connection with potential frontal impact accidents. It has also been raised by the labour unions that buses need to become more crash resistant. Plan is to change the scope and perhaps add a new section for testing the front of the buses. Alternatively make a new regulation for frontal protection for buses.

Proposal to introduce a tolerance for the position of the loading device during the test. The loading device is required to be parallel to the x-y plane of the chassis. This proposal would add a z dimension to the x-y plane and set a tolerance such that the loading device may not deviate by more than 5° along the z-axis.

Proposal to introduce a tolerance for the position of the loading device during the test. The loading device is required to be parallel to the x-y plane of the chassis. This proposal would add a z dimension to the x-y plane and set a tolerance such that the loading device may not deviate by more than 5° along the z-axis.

Proposal to introduce installation specifications for securing a cab mounted on a vehicle to the test rig for tests B and C, as is currently provided for test A, under UN R29. This proposal aims to improve repeatability and reproducibility while allowing more flexibility in permitting the use of rigid composite blocks and/or (adjustable) metal brackets in securing the vehicle in the place of the wooden block presently prescribed in Figure 1.

Proposal to introduce installation specifications for securing a cab mounted on a vehicle to the test rig for tests B and C, as is currently provided for test A, under UN R29. This proposal aims to improve repeatability and reproducibility while allowing more flexibility in permitting the use of rigid composite blocks and/or (adjustable) metal brackets in securing the vehicle in the place of the wooden block presently prescribed in Figure 1.

Proposal to introduce a tolerance for the position of the loading device during the test. The loading device is required to be parallel to the x-y plane of the chassis. This proposal would add a z dimension to the x-y plane and set a tolerance such that the loading device may not deviate by more than 5° along the z-axis.

Proposal to introduce installation specifications for securing a cab mounted on a vehicle to the test rig for tests B and C, as is currently provided for test A, under UN R29. This proposal aims to improve repeatability and reproducibility while allowing more flexibility in permitting the use of rigid composite blocks and/or (adjustable) metal brackets in securing the vehicle in the place of the wooden block presently prescribed in Figure 1.

Proposal to introduce installation specifications for securing a cab mounted on a vehicle to the test rig for tests B and C, as is currently provided for test A, under UN R29. This proposal aims to improve repeatability and reproducibility while allowing more flexibility in permitting the use of rigid composite blocks and/or (adjustable) metal brackets in securing the vehicle in the place of the wooden block presently prescribed in Figure 1.

The 03 series of amendment introduced a new Test C into UN Regulation No. 29. This proposal adds specifications for the test rig in the case where a pendulum impactor is used (as is already prescribed for Tests A and B). To improve the repeatability of the test, the submission further proposes to place the cab on a horizontal surface and to fix the pendulum with a required angle of 20° of impact against the cab to be tested. This proposal also adds language to require that the vehicle cab remain attached to the vehicle frame by at least three mounting points following the pendulum test.

The 03 series of amendment introduced a new Test C into UN Regulation No. 29. This proposal adds specifications for the test rig in the case where a pendulum impactor is used (as is already prescribed for Tests A and B. To improve the repeatability of the test, the submission further proposes to place the cab on a horizontal surface and to fix the pendulum with a required angle of 20° of impact against the cab to be tested.

Proposal to clarify the scope of UN Regulation No. 29 and the tests to be performed on the various types of category N vehicles as adopted by the GRSP at its 54th session based upon a proposal from Russia (document GRSP/2013/19).

Proposal to require that the vehicle cab remain attached to the vehicle frame by at least three mounting points following the pendulum test.

Proposal to clarify the scope of UN Regulation No. 29 and the tests to be performed on the various types of category N vehicles.

With reference to Sweden’s proposal to revise the scope of UN R29 (document GRSP/2013/9), Russia recommends examples of N Category vehicles presently outside the Swedish proposal for inclusion within the scope of the regulation.

Discussion paper on the proposal to revise the scope of UN R29 to cover N3 vehicles and N2 vehicles with a gross vehicle mass exceeding 7.5t with a separate driver’s cab and to N1 vehicles and N2 vehicles with a gross vehicle mass not exceeding 7.5t with regard to the protection of the occupants of the cab.

Text as adopted by the Working Party on Passive Safety (GRSP) at its 52nd session to permit additional arrangements of the test dummy and upper-legs rotation around the vertical and transverse axis

Text as adopted by the Working Party on Passive Safety (GRSP) at its 52nd session in order to permit additional arrangements of the test dummy to enable upper-leg rotation around the vertical and transverse axis.

Proposal from Sweden to clarify that the requirements and test methods in the 03 series of amendments are limited to category N3 vehicles and category N2 vehicles with a gross vehicle mass exceeding 7.5 tons.

Presentation on proposal to revise the scope of UN R29 to cover N3 vehicles and N2 vehicles with a gross vehicle mass exceeding 7.5t with a separate driver’s cab and to N1 vehicles and N2 vehicles with a gross vehicle mass not exceeding 7.5t with regard to the protection of the occupants of the cab.

Supporting presentation to the proposal (document GRSP/2012/24) from Germany for amendments to Regulation No. 29 primarily to add further possibilities for the seating arrangement of test dummies.

Proposal from Germany for Supplement 2 to the 02 series of amendments and for Supplement 1 to the 03 series of amendments of Regulation No. 29 primarily to add further possibilities for the seating arrangement of test dummies.

Proposal from Russia to delete the phrase “with separate driver’s cab” from the scope of UN R29 in order to affirm that the regulation applies to all N1 and N2 category vehicles, reverting the regulation scope to the text of the 02 series of amendments.

Revised proposal from Russia to delete the phrase “with separate driver’s cab” from the scope of UN R29 in order to affirm that the regulation applies to all N1 and N2 category vehicles.

Proposal from Russia to delete the phrase “with separate driver’s cab” from the scope of UN R29 in order to affirm that the regulation applies to all N1 and N2 category vehicles.