About Us +
Researchers in the Building Technology & Urban Systems Division (BTUS) at Lawrence Berkeley National Laboratory develop data and technologies that increase energy efficiency and improve the health, safety and comfort of building occupants, in the United States and worldwide.

We work closely with industry partners, academics and government officials to achieve these goals, and share our research widely
Research +
We are at the forefront of cutting-edge research that redefines building technology and explores all areas of urban systems.

We have been leaders for decades in developing energy-efficient windows, improving indoor air quality, coming up with new ideas to fix the nation's electricity grid, and so much more.

Visit our research areas at the right to find out more.
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Publications +
Enjoy presentations from Building Technology & Urban systems research experts on a wide variety of topics in the areas of building energy efficiency, the electricity grid and how it relates to buildings and much more.
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News
Tools & Guides +
Explore our tools, guidebooks and software and download for free.

We offer a variety of technologies designed to simulate and model real-world circumstances to assist in energy-saving programs and help building owners build better buildings. These tools can help calculate performance of building systems like windows and shades, help consumers and builders pick the best windows for a variety of applications and much more.

Publications

Publications By Research Area

2018

Wenzel, Thomas P.."Assessment of NHTSA’s Report “Relationships Between Fatality Risk, Mass, and Footprint in Model Year 2004-2011 Passenger Cars and LTVs” (LBNL Phase 1)." (2018).

Wenzel, Thomas P., and K. Sydny Fujita."Elasticity of Vehicle Miles of Travel to Changes in the Price of Gasoline and the Cost of Driving in Texas." (2018).

2016

Wenzel, Thomas P.."Effect of using Different Vehicle Weight Groups on the Estimated Relationship between Mass Reduction and U.S. Societal Fatality Risk per Vehicle Miles of Travel." (2016).

Wenzel, Thomas P.."Assessment of NHTSA’s Report “Relationships Between Fatality Risk, Mass, and Footprint in Model Year 2003-2010 Passenger Cars and LTVs”." (2016).

Wenzel, Thomas P.."Effect of Accounting for Crash Severity on the Relationship between Mass Reduction and Crash Frequency and Risk per Crash." (2016).

Wenzel, Thomas P.."Sensitivity of Light-Duty Vehicle Crash Frequency per Vehicle Mile of Travel to Additional Vehicle and Driver Variables." (2016).

2012

Wenzel, Thomas P.."An Analysis of the Relationship between Casualty Risk Per Crash and Vehicle Mass and Footprint for Model Year 2000-2007 Light-Duty Vehicles - Final Report." (2012).

Wenzel, Thomas P.."Assessment of NHTSA’s Report “Relationships Between Fatality Risk, Mass, and Footprint in Model Year 2000-2007 Passenger Cars and LTVs” - Final Report." (2012).

Wenzel, Thomas P.."Analysis of Casualty Risk per Police-Reported Crash for Model Year 2000 to 2004 Vehicles, using Crash Data from Five States." (2012).

2011

Wenzel, Thomas P.."An Analysis of the Relationship between Casualty Risk Per Crash and Vehicle Mass and Footprint for Model Year 2000-2007 Light-Duty Vehicles - Preliminary Report." (2011).

Wenzel, Thomas P.."Assessment of NHTSA’s Report “Relationships Between Fatality Risk, Mass, and Footprint in Model Year 2000-2007 Passenger Cars and LTVs” - Preliminary Report." (2011).

2010

Wenzel, Thomas P.."Analysis of the Relationship Between Vehicle Weight/Size and Safety, and Implications for Federal Fuel Economy Regulation." (2010).

2006

Wenzel, Thomas P.."Increasing the Fuel Economy and Safety of New Light-Duty Vehicles." (2006).

2003

Wenzel, Thomas P.."Use of remote sensing measurements to evaluate vehicle emission monitoring programs: results from Phoenix, Arizona."Transportation Research Part D 6.2 (2003). DOI

Wenzel, Thomas P., and Marc Ross."Comment on ‘‘Statistical modelling of vehicle emissions from inspection/maintenance testing data: an explanatory analysis’’."Transportation Research Part D 8.1 (2003) 69-71. DOI

2002

Wenzel, Thomas P., and Marc Ross."An Analysis of Traffic Deaths by Vehicle Type and Model." (2002).

2001

Wenzel, Thomas P.."Evaluating the long-term effectiveness of the Phoenix IM240 program."Environmental Science & Policy 4.6 (2001). DOI

Wenzel, Thomas P.."Reducing emissions from in-use vehicles: an evaluation of the Phoenix inspection and maintenance program using test results and independent emissions measurements."Environmental Science & Policy 4.6 (2001) 359-376. DOI

Wenzel, Thomas P., and Marc Ross."Losing Weight to Save Lives: A Review of the Role of Automobile Weight and Size in Traffic Fatalities." (2001).

Wenzel, Thomas P.."Can More Frequent Testing Improve I/M Program Effectiveness? Analysis ofthe Effect of Annual Testing in the Phoenix IM240 Program." (2001).

Wenzel, Thomas P., and Nancy J. Brown."Can More Frequent Testing Improve I/M Program Effectiveness? Analysis of the Effect of Annual Testing in the Phoenix IM240 Program." (2001).

2000

Wenzel, Thomas P., and Robert Sawyer."Analysis of a State Data on In-Use Emissions from Motor Vehicles (EPA Interagency Agreement DW89938103-01-1): Review of Work Completed." (2000).

1998

Wenzel, Thomas P., and Robert Sawyer."Analysis of a Remote Sensing Clean Screen Program in Arizona." (1998).

1997

Wenzel, Thomas P., Jonathan G. Koomey, Gregory J. Rosenquist, Marla C. Sanchez, and James W. Hanford."Energy Data Sourcebook for the U.S. Residential Sector." (1997).

1992

Atkinson, Barbara A., James E. McMahon, Evan Mills, Peter T. Chan, Terry W. Chan, Joseph H Eto, Judy D. Jennings, Jonathan G. Koomey, Kwok-Wai Ken Lo, Matthew E. Lecar, Lynn K. Price, Francis M. Rubinstein, Osman Sezgen, and Thomas P. Wenzel."Analysis of Federal Policy Options for Improving U.S. Lighting Energy Efficiency: Commercial and Residential Buildings." (1992).