modeling

Real-time crash prediction models: State-of-the-art, design pathways and ubiquitous requirements (Accident Analysis and Prevention, 2019)

With the advancements in artificial intelligence, and multiple studies being focused towards developing real-time crash prediction models, the concept of a proactive safety management system has become very close to reality. The linked study conducts an extensive review of the existing real-time

New study finds that road closures can alleviate congestion in dense urban areas

By Chet Edelman Historically, transportation policy addressing vehicle congestion has entailed increasing road capacity—whether it be through widening existing roads or building new roads altogether. However, research consistently reveals that these policies have the opposite effect. Rather

The shortest path usually isn’t the best one, according to bikeshare users

By Chris McCahill Many transportation models assume that people choose the shortest (or least cost) path connecting them from point A to point B. But this isn’t how individuals actually behave—or so confirms one recent study based on bikeshare trip data. This affects how we model travel

Mainstreaming transportation and land use modeling within Oregon DOT

By Chris McCahill States interested in modeling transportation and land use can now learn from Oregon’s experience building its Statewide Integrated Model (SWIM), thanks to a new study published in the Journal of Transport and Land Use. The model, now used in ODOT’s regular operations, grew

Bridging the gap between research and practice: new study on the role of induced vehicle travel

By Mary Ebeling A newly released study sponsored by CalTrans offers a thorough review and analysis of research and practice related to the limitations of existing travel forecasting models. The authors focus on limitations in forecasting induced vehicle travel generated by adding lane miles

Study finds dynamic ridesharing can boost TDM effectiveness

By Chris McCahill The market for dynamic, taxi-like services is rapidly changing. On-demand ridesharing platforms like Uber and Lyft are growing in popularity, and automakers are clamoring to launch autonomous cars that could someday serve as self-driving taxis. That leaves many transportation

Assessing the Extent and Determinates of Induced Growth (Montana DOT, 2013)

Transportation improvements affect the accessibility of places, which in turn can result in changes in land use in combination with factors that support or discourage development (such as land prices, market demand, local land use regulations, and environmental constraints). Transportation

Land Use and Traffic Congestion (AZ Department of Transportation Research Center, 2012)

A first-ever analysis of land-use and transportation demand in Arizona contradicts fears that compact, “smart growth” development, while beneficial in moderating demand, will increase localized congestion. The report, produced for Arizona DOT in March, also suggests that traditional travel

AZ DOT report finds compact development reduces VMT without increasing localized congestion

By Eric Sundquist A first-ever analysis of land-use and transportation demand in Arizona contradicts fears that compact, “smart growth” development, while beneficial in moderating demand, will increase localized congestion. The report, produced for Arizona DOT in March, also suggests that

SSTI’s scenario analysis tool unveiled; will allow DOTs to better engage with land use authorities

By Bill Holloway Transportation agencies traditionally have to chase land use development, spending scarce funds to provide new roadway capacity, when better land-use patterns could have greatly reduced travel demand. SSTI’s new scenario analysis tool, developed for DelDOT, provides a way for