The Los Angeles County Metropolitan Transportation Authority (Metro) recently began studying the ways in which bicycling, for transportation and in combination with transit, can reduce automobile use and lower greenhouse gas (GHG) emissions. The first of these focused studies concentrated on the Metro Orange Line and parallel bicycle path. This Bicycle Rail Trip Analysis and Greenhouse Gas Emissions Study looks more broadly at bicycle trips to and from Metro Rail. The purpose of this study is to establish the benefits of providing an integrated transportation system where bicyclists are accommodated at train stations and on trains.
This focused study relies on bicycle trip data gathered by conducting intercept surveys of bicyclists at a subset of nineteen (19) Metro Rail stations. Counts and surveys were conducted during the weekday morning commute period (6 a.m. to 10 a.m.), the weekday evening commute period (4 p.m. to 8 p.m.) and the weekend midday period (10 a.m. to noon). Bicyclists were asked to report about the journey they were taking at that moment, from the origin to the final destination. Concurrently with the intercept surveys, volunteers recorded the total number of bicyclists entering and exiting each sampled station. Volunteers collected 605 usable surveys and counted 2,305 bicyclists at the 19 sampled stations.
This study uses survey data to calculate bicycle-rail trip distances and associated reductions in vehicle miles traveled (VMT) and GHG emissions. Bicycle count data collected at the sample stations was extrapolated to daily and annual bicycle trips at all stations using Metro Rail ridership data from fiscal year (FY) 2009, and commonly accepted traffic analysis methodology. For those bicycle trips that replaced auto-based trips, trip distances were calculated and used to calculate annual VMT reductions, which were then applied in the Caltrans Emissions Factors model to calculate estimate GHG, criteria pollutant, and mobile-source air toxics (MSAT) emissions reductions.
Published June 01, 2011
The phenomena of thru-hiking has been on a dramatic rise, spurring hikers to venture onto increasingly remote and challenging trails over extended periods of time. Despite the recent popularity of thru-hiking, the field remains relatively unstudied. In recreation, the expectations held beforehand have been linked to perceptions after an activity, but this has not been explored in thru-hiking.
This study evaluated pack weight to understand the limits of long-term load carriage. Participants were Appalachian Trail hikers who attempted to complete the entire trail in the 2012 season.
The purpose of this research was to examine the outcomes prompting hiking along the Appalachian Trail (AT).
In recent years, fat bikes have become a popular option for mountain bikers. A fat bike is a mountain bike equipped with tires ranging from 9.3 – 10.1 cm wide, twice as wide as a traditional mountain bike tire (Barber, 2014). This allows them to be ridden at an inflation pressure as low as 27579 Pascal (4 PSI). The wide surface area, and low inflation pressure, of these tires allows for excellent handling of the bicycle while riding over sand, mud, and snow. It is difficult, if not impossible, for a traditional mountain bike to ride over such surfaces.