Small Projects Year 2 (2013-2014)

Smartphone-Based System for Automated Detection of Walking

PI: Philip Hurvitz (UW),
Dates: 9/30/13 – 7/31/2015
Final Project Report: PacTrans-51-UW-Hurvitz

Walking is the most effective mode of travel to access transit: transit hubs with higher residential and employment densities have higher ridership levels because they serve areas where a large population is within a short walk of transit service. Walking has additional benefits: it is well-known as a low impact mode of travel for short trips to and from, as well as within, commercial areas; and it is the most popular form of physical activity. However, current data on walking are notoriously poor. Read More

Field Validation of Recycled Concrete Fines Usage

PI: Donald Janssen (UW),
Dates: 9/16/13 – 8/31/2015
Final Project Report: PacTrans-32-UW-Janssen

A system for quantifying waste fines in a ready-mix concrete plant’s waste-water recirculation system will be designed, fabricated, and installed at the Stoneway Readymix Concrete Plant (in the Seattle area).  Concrete mixtures produced at this plant will then be evaluated to document the effects of the waste fines optimization procedures.

Testing of Cavity Attenuation Phase Shift Technology For Siting Near-Road NO2 Monitors

PI: Tim Larson (UW),
Dates: 9/1/13 – 8/31/2015
Final Project Report: PacTrans-53-UW-Larson

Recent research has identified the public health importance of air pollution exposures near busy roadways.  As a result, the Environmental Protection Agency (EPA) significantly revised its Nitric oxide (NO2) air quality standard in 2010.  The current regulatory focus has shifted from assessment of longer-term (annual average) NO2 concentrations measured at locations away from busy roads to shorter-term (1-hour average) concentrations measured at locations near busy roads.  Even though EPA has developed extensive guidelines for siting traditional air quality monitors that are located relatively far from roads, their siting guidance for near-road NO2 monitors is not yet officially established. Therefore this project proposes to test a more direct approach to siting near-road NO2 sampling locations using a state-of-the-art NO2 monitor that is no more expensive than traditional EPA chemiluminesce-base monitors, is much more readily deployed on a mobile platform, and can ultimately be used as the regulatory monitor at the official sampling location.

Identifying and Analyzing the Relative Advantages and Disadvantages of Public-Private Partnerships and Traditional Delivery for Roadway Projects

PI: Jan Whittington (UW),
Dates: 9/16/13 – 6/30/2015

With the recent adoption of Moving Ahead for Progress in the 21st Century (MAP-21), the U.S. Congress sent out a clarion call to the transport community that all roads should lead to private sector financing of our infrastructure. Congress increased the key transport lending tool, the TIFIA program, almost ten-fold to $1 billion in the second year of the authorization bill to spur private participation. The Wall Street Journal further laid out to the financial sector and its readership, “Private investment in America’s transportation systems through public private partnerships (PPPs) has the potential to expand, revitalize and rationalize our infrastructure. With the right policies, that can happen. Read More

Changing Retail Business Models and the Impact on CO2 Emissions from Transport: E-commerce Deliveries in Urban and Rural Areas

PI: Anne Goodchild (UW),
Dates: 7/1/13 – 10/31/14
Final Project Report: PacTrans-23-UW-Goodchild

E-commerce currently represents approximately 8% of total shopping, up from 6% only 5 years ago with a compound annual growth rate of approximately 9% (Mulpuru et al. 2008, 2013). Online shopping is growing at a faster rate than traditional retailing, and presents a new model for freight transportation. By eliminating stores, e-commerce results in a more streamlined supply chain, often ending in residential rather than commercial locations. In addition, e-commerce often bypasses commercial locations, relying instead on more distribution and warehousing facilities. This project will build on previous work, which examined the carbon dioxide (CO2) impacts of grocery delivery in the city of Seattle and will examine the CO2 and criteria pollutant implications for serving e-commerce customers in rural areas. Read More

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