Increased coal shipments to Washington State ports could significantly intensify congestion on both roads and rail lines. Two recent reports by Parametrix and the Sightline Institute discuss the impacts of increased shipments of fossil fuels (particularly coal) from Montana, Wyoming, and North Dakota to ports in the Pacific Northwest.
congestion
Study highlights importance of travel time as a metric
As commute times increase, married women work fewer hours or even drop out of the workforce according to a forthcoming article. The finding helps explain differences in women’s workforce participation across various metro areas. Its focus on travel time as a driver of economic outcomes, the article has clear relevance to transportation agencies that are wrestling with setting meaningful, outcome-based performance measures.
Freight rail traffic is growing, but urban conflicts hinder infrastructure expansion
While passenger rail has been on the front page, freight railroads have been thriving. However a new truck-to-rail transfer facility to serve the ports of Los Angeles and Long Beach has caused a fierce debate on the thorny question of how to weigh the value of regional economic and environmental benefits against local environmental impacts and environmental justice concerns.
Public supports system preservation, why not politicians?
More evidence that the public strongly supports system preservation comes from a survey performed for the Wisconsin Department of Transportation. When asked to rank the importance of a variety of potential priorities for WisDOT, preservation came out on top by a wide margin with 47.3 percent of respondents citing it as “extremely important.” A year earlier, a survey for Washington DOT found a similar result in that state.
Measuring Urban Transportation Performance: A Critique of Mobility Measures and a Synthesis (CEOs for Cities, 2010)
This report offers a new view of urban transportation performance. It explores the key role that land use and variations in travel distances play in determining how long Americans spend in peak hour travel.
Does the travel-time index really reflect performance?
Last week’s release of the Texas A&M Urban Mobility Report, with its charts and lists, prompted the usual flurry of media coverage. However, the travel-time index, a staple of the UMR, may not adequately reflect the performance of a transportation system. If the index becomes an official performance measure under MAP-21, optimizing system performance could become harder for DOTs.
One-way or two-way streets more efficient? It depends on what you measure
The debate over one-way versus two-way streets has been ongoing for more than half a century in American cities. Counter to prevailing engineering wisdom, a new study finds two-way streets may be more efficient, if one is measuring getting people to their destinations.
Mexico City tackles congestion head-on
As recently as 2011, Mexico City ranked among the world’s worst for traffic congestion. But now, Mexico City’s improvements to their transportation system can serve as a model for other municipalities to learn from. The city shines as an international example of a rapidly growing city successfully lowering carbon emissions, reducing the severity of traffic jams, increasing public space, and improving overall quality of life.
Silicon Valley shuttles change the face of public transit in San Francisco
Although the shuttles provided by Silicon Valley companies help alleviate congestion and air quality problems in the Bay Area, they have also created some tension in residential neighborhoods where they pick up employees. Only recently have the routes of these “ghost buses” been mapped. San Francisco transit planners and politicians are working to create rules for the popular shuttles.
Highway congestion highest on Friday afternoon
Car commuters in most large metro areas face the highest level of highway congestion on Friday afternoon, according to Inrix data provided to Governing magazine. However many metro areas have relatively minor changes in commuting times. And one quarter of commuters in metro areas with the highest Friday congestion times opt out of traffic by walking, biking, using transit, or working at home.