Reworked version of document TFAC-05-10.

Reworked and restructured version of document TFAC-05-10.

Working draft of the comprehensive update to UN R55 from the Informal Group on Amendments to UN R55.01.

E-mail communication between the WP.29 secretariat and the UN R55 revision informal group proposing the drafting of a new consolidated version of the amended regulation incorporating all the informal group changes.

Revised drawings prepared for the informal working group amending the regulation.

Presentation to explain the historical background behind the work of ISO/TC22/SC15/WG4 and the UN R55 informal working group.

Review of the development of ISO 12357-3.

History of discussions concerning the D-value on modular vehicles and combinations with more than one trailer.

Australian research paper suggesting that an air-suspended tandem converter dolly could pitch significantly under braking as compared to mechanically suspended dollies.