HORIBA to Conduct Road Relay to Measure Global Car Exhaust Data Commemorating Fifty Years in Business (January 26, 2003)

21 January 2003

To commemorate fifty years in business, HORIBA, Ltd. (headquartered in Kyoto, president Atsushi Horiba) will launch what it calls the HORIBA Global Eco-Drive Road Relay during a ceremony to be held on January 25, 2003. This road relay is the world’s first of its kind, with the employees of HORIBA group companies volunteering as drivers, who will drive the “baton”—a car mounted with a mobile exhaust measuring system—past the relay points in Japan, the United States, and Europe. In the spirit of appreciation for fifty years in business, the company wants to give something back to society by releasing useful data from this event through academic societies and the Internet, as a contribution to environmental and energy-related initiatives.


A key feature of this road relay is that by measuring exhaust gases emitted from a vehicle in actual operation on normal roads, using the world’s first on-board car exhaust gas measuring system, it has become possible for the first time to collect actual measurement data on a dimension that until now was not well known. The exhaust data and other recorded information will lead to a better understanding of how a vehicle’s burden on the environment changes in real time, in response to factors such as traffic conditions, weather, and altitude. Through this road rally it will be possible to obtain data from the world’s roads that will be valuable in the fields of the environment and energy, and that data will be released in a timely manner through academic societies and the Internet.

Parameters: Vehicle emissions of CO, CO2, HC, NOx, and A/F (air-fuel ratio) will be continuously measured. The mass of exhaust gases and fuel consumption per kilometer will be calculated from values measured by an exhaust gas flow meter.

Key Facts

Start/finish: January 25, 2003 (start) to August 2003 (planned completion)
Road segments: Point-to-point in Japan (from Kyushu in southern Japan to HORIBA’s headquarters in Kyoto), then in the United States, Europe, and back in Japan (from HORIBA’s headquarters to Hokkaido in northern Japan)
Employees of HORIBA Group companies will be volunteer drivers. Each team of two partners will cover a designated distance in two-day segments with one overnight stop. At the fiftieth anniversary ceremony on January 25, company president Atsushi Horiba will present the keys to the first driver.