Research Topics:


Air Quality in Metro stations

Study of occupational exposure to particulate matter (PM) and testing for 
harmful components including metals and asbestos.

Electrified Transport

Study of optimal solutions for petroleum-free, carbon-free future
inter-/urban mass transport for both goods and people. 

Conclusion: 
trolleybuses and trolleytrucks have great potential to fill a role that
nothing else can. Potential to pair with human transport excellent. 
Systems can serve as transitional to rail through provision of 
complementary infrastructure and by precipitating land use changes.

See presentation here and one paper here.
See research needs paper to TRB here.

Stops as Yields for Cyclists

Study of the implications of allowing bicyclists to choose whether to
come to a hard stop, with the option to choose a rolling yield, at stop 
signs and signals. 

Conclusion:
Bicyclists and other roadway users are safer, while health and other 
policy goals are best served by the measure. 

See presentation, draft paper, and policy letter, linked from 
blog article.

History of the Bicycle: Role of Oil Industry in Suppressing Mode Share

Conclusion: the potential of the bicycle was suppressed deliberately.

Low-cost expedient survey methodology to assess and predict the bicycling situation in cities. 
Pursuant to the BICY project, a methodology was developed for gathering baseline 
data on bicycling and other modes in cities across Central Europe. The method 
appears successful, and could be used even by volunteers hoping to increase 
the availability of information on cycling. One benefit of the method is the 
uniform approach, which has allowed additional findings on the importance of
infrastructure to increased cycling. Already 13 cities have used the approach.

Paper: Unified, Low-Cost Analysis Framework for the Cycling Situation in Cities, 
International Journal of Civil and Environmental Engineering 6 2012.

Traffic Calming Studies of both effectiveness and equity implications of various extant and proposed traffic calming measures. Conclusions include: new vision for best practices in comprehensive traffic calming, including new legal, funding and policy mechanisms. Noise Pollution Surveys of ambient noise coupled with initiatives to pass legislation and influence urban design including bicycle-pedestrian bridge pathways; proposed study to improve the SF DPH Noise Model, in part through developing a model of car horn use focusing on the harmful new phenomenon of private automobiles sounding horns and other devices when they are locked and unlocked. Paper submitted to TRB.