While Halliburton has not conducted a comprehensive analysis of the environmental impacts associated with transportation for our materials, equipment and personnel, we are working in a variety of areas to conserve energy, reduce the greenhouse gas emissions and minimize safety risks to our employees.
As detailed in our response to EN6 our Frac Factories™, Sand Castles™ and the 4th Generation Frac Spread project have aspects which reduce the number of vehicle miles travelled, the amount of equipment transported to the well site and engine idling.
In 2010 we implemented a global HSE standard for Journey Management that requires all trips greater than 25 miles be reviewed for transportation risks. This program which recorded over 610, 000 trips in 2010 helps to eliminate unneeded trips, consolidate trip activities to use fewer vehicles and requires region/country management approval on all high risk journeys.
We are also installing in-vehicle monitoring systems in all new vehicles in the U.S., Canada and selected international locations. These systems help monitor speed and idling whenever the vehicle is in use. As of April 2011, approximately 63% of all our vehicles globally have an in-vehicle monitoring system. Data from these monitors are tracked by location management and individual drivers are counseled as needed on exceedances.
On many of our projects work crews are transported by van or bus to the well site to reduce the number of vehicles required to staff the job and to reduce the safety risks associated with driving and fatigue when the work is completed.