Traffic Effects of Fairs and Festivals on Low-Volume Roads

2003 ◽  
Vol 1819 (1) ◽  
pp. 260-264 ◽  
Author(s):  
Ronald W. Eck ◽  
Daniel A. Montag
Keyword(s):  
Performing Arts ◽  
Traffic Management ◽  
The United States ◽  
Arts And Crafts ◽  
Sporting Events ◽  
Trip Generation ◽  
Special Events ◽  
Low Volume Roads ◽  
Study Results ◽  
Low Volume

Special events, including sporting events, concerts, historical re-enactments, and fairs and festivals, can generate large volumes of traffic such that congestion and associated problems occur on low-volume roads. In particular, theme-oriented fairs and festivals, such as arts and crafts fairs and wine and jazz festivals, are growing in number and popularity throughout the United States. Quantifying and understanding the traffic characteristics of fairs and festivals would be useful in predicting how such events will affect traffic flow on a low-volume road, planning traffic management, and predicting parking needs. One specific need is for trip-generation data for estimating the magnitude and nature of travel associated with theme-oriented fairs and festivals. Background data were collected for a number of West Virginia events on low-volume roads through interviews and questionnaires. Five categories of theme-oriented fairs and festivals were identified: food and drink, arts and crafts, cultural heritage, historical, and performing arts. The number of booths was recommended as the best independent variable to use in calculating trip-generation rates. Attendance and vehicular data were collected and analyzed. Vehicle occupancy for theme-oriented fairs and festivals was determined to be 2.33 people per vehicle. Trip-generation rates and corresponding statistics were determined for 2-day (Saturday and Sunday) and 3-day (Friday, Saturday, and Sunday) events. Implications of the study results for low-volume road managers were considered.

Rethinking Traditional Approaches to Low-Volume Road Provision in Developing Countries

2003 ◽  
Vol 1819 (1) ◽  
pp. 74-80 ◽  
Author(s):  
M. I. Pinard ◽  
C. S. Gourley ◽  
P. A. K. Greening
Keyword(s):  
Developing Countries ◽  
Rural Communities ◽  
The United States ◽  
The Road ◽  
Project Appraisal ◽  
Holistic Approaches ◽  
Low Volume Roads ◽  
Social And Economic Development ◽  
Low Volume ◽  
Traditional Approaches

Low-volume roads (LVRs) constitute an integral component of the road system in all developing countries, where their importance extends to all aspects of the social and economic development of rural communities. However, the original documentation relating to the provision of such roads is based in many respects on technology and research carried out in Europe and the United States some 30 to 40 years ago in environments very different from those prevailing in developing countries. As a result, these traditional approaches are often inappropriate for application in developing countries. Moreover, they tend to focus on the technical environment of road provision, with inadequate consideration of other interrelated environments that critically influence the types of LVRs that should be provided. As a result, a need for new, more holistic approaches to low-volume road provision has been engendered to satisfy the various needs of rural communities in a more sustainable manner. The objective of this discussion is to provide an insight into new, more holistic and sustainable approaches to the provision of LVRs in developing countries. Embodied in these new approaches is a need to rethink the old ways of providing such roads based on research and development work that has been carried out in these countries during the past 20 years. Examples include aspects of planning and project appraisal, geometric and pavement design, construction and drainage, and environmental issues, all of which need to be reconsidered in a more appropriate manner.

Cost-Effective Structures for Off-System Bridges

2003 ◽  
Vol 1819 (1) ◽  
pp. 397-404
Author(s):  
Francesco M. Russo ◽  
Terry J. Wipf ◽  
F. Wayne Klaiber
Keyword(s):  
Asset Management ◽  
Cost Effective ◽  
The United States ◽  
Federal Aid ◽  
Rural And Urban ◽  
Low Volume Roads ◽  
Bridge Strengthening ◽  
Maintenance And Rehabilitation ◽  
Low Volume ◽  
Local Agencies

Nearly half of the 587,000 bridges in excess of 6.1 m (20 ft) long on public roads in the United States are located off the Federal Aid System, are on local rural and urban roads or rural minor collectors, and are classified as off-system bridges. Approximately one-third of the off-system bridges are structurally deficient or functionally obsolete. The majority of states with large bridge populations are rural states with large percentages of structures owned by counties and other local agencies. Many of these bridges are on low-volume roads. Given the size of the deficient bridge population and the concentration of these bridges largely on locally owned networks, a recent NCHRP synthesis (NCHRP 32-08, Cost Effective Structures for Off-System Bridges) has explored the current practices regarding the maintenance, rehabilitation, and replacement of off-system bridges. The administrative aspects of off-system bridge ownership and management were explored, including sources and problems of funding, bridge asset management, design policies for off-system bridges, exploration of the environmental process, and discussions of interagency partnering and coordination problems. A significant body of work exists on effective bridge maintenance and rehabilitation. A significant discussion of bridge strengthening, including specific techniques used on low-volume-road bridges, was also examined. Concerning bridge replacements, the literature and owner survey were used to provide information on successful concepts currently being used. In addition to successful bridge replacement options, discussion of the use of standard plans, design aids, and software is promoted as leading to standard and efficient low-volume-road bridge replacements.

Accuracy Assessment of Satellite-Based Freeze-Thaw Retrievals on Low-Volume Roads in the United States

2019 ◽  
Vol 2673 (12) ◽  
pp. 756-766 ◽  
Author(s):  
Simon Kraatz ◽  
Heather J. Miller ◽  
Jennifer M. Jacobs ◽  
Eshan V. Dave ◽  
Jo Sias
Keyword(s):  
United States ◽  
Accuracy Assessment ◽  
High Volume ◽  
The United States ◽  
Accurate Identification ◽  
Road Management ◽  
Low Volume Roads ◽  
Hourly Data ◽  
Low Volume ◽  
Better Than

Accurate identification of soil freeze or thaw (FT) is important for road management, because it greatly affects a road’s load bearing capacity. Despite low-volume roads (LVR) being more susceptible to damage because of FT transitions compared with high-volume roadways, relatively few LVRs are monitored via temperature data probes (TDP). Frequent and global spaceborne retrievals of soil FT states may be valuable to fill this observational gap. NASA’s Soil Moisture Active Passive (SMAP) instrument provides FT retrievals up to twice a day, approximately corresponding to the top 0–10 cm of soils. This study compares SMAP FT data to TDP data at LVRs located in the contiguous United States (CONUS) and Alaska using hourly data obtained from the Meteorological Assimilation Data Ingest System for the 2016, 2017, and 2018 winters. Overall, SMAP FT retrievals show promise in distinguishing between cold and warm roads. For all cases, the median road temperatures corresponding to SMAP frozen and thawed retrievals were clearly below or above 0°C, respectively. SMAP 6:00 p.m. observations perform better than the 6:00 a.m. observations with overall accuracies of 76% in CONUS and 81% Alaska. However, SMAP’s accuracy for frozen conditions is below 50% in CONUS indicating that SMAP has a warm bias compared with the TDP sites. These preliminary results suggest that the SMAP FT states have potential value for road management.

Trip and parking generation rates for different housing types: Effects of compact development

Urban Studies ◽  
2018 ◽  
Vol 56 (8) ◽  
pp. 1554-1575 ◽  
Author(s):  
Guang Tian ◽  
Keunhyun Park ◽  
Reid Ewing
Keyword(s):  
United States ◽  
Negative Binomial ◽  
Explanatory Power ◽  
Principal Component ◽  
The United States ◽  
Trip Generation ◽  
Single Family ◽  
Vehicle Ownership ◽  
Study Results ◽  
Parking Demand

Guidelines for trip and parking generation in the United States come mainly from the Institute of Transportation Engineers (ITE). However, their trip and parking manuals focus on suburban locations with limited transit and pedestrian access. This study aims to determine how many fewer vehicle trips are generated and how much less parking demand is generated, by different housing types (single-family attached, single-family detached, and apartment and condo) and in different settings (from low density suburban environments to compact, mixed-use urban environments). Using household travel survey data from 30 diverse regions of the United States, we estimate a multilevel negative binomial model of vehicle trip generation and a multilevel Poisson model of vehicle ownership, vehicle trip generation and vehicle ownership being logically modelled as count variables. The models have the expected signs on their coefficients and have respectable explanatory power. Vehicle trip generation and vehicle ownership (and hence parking demand) decrease with the compactness of neighbourhood development, measured with a principal component that depends on activity density, land use diversity, percentage of four-way intersections, transit stop density and employment accessibility (after controlling for sociodemographic variables). The models capture the phenomena of ‘trip degeneration’ and ‘car shedding’ as development patterns become more compact. Reducing the number of required parking spaces, and vehicle trips for which mitigation is required, creates the potential for significant savings when developing urban projects. Guidelines are provided for using study results in transportation planning.

Study & Experimental Analysis of Pervious Concrete In Low Volume Roads

2018 ◽  
pp. 172-176
Author(s):  
Suraj Pinate ◽  
Hitesh Sonawane ◽  
Jayesh Barhate ◽  
Mayur Chaudhari ◽  
Utkarsha Dhok ◽  
...  
Keyword(s):  
Experimental Analysis ◽  
Pervious Concrete ◽  
Low Volume Roads ◽  
Low Volume

scholarly journals Preliminary Techno-Economic Assessment of Animal Cell-Based Meat

Foods ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 3
Author(s):  
Derrick Risner ◽  
Fangzhou Li ◽  
Jason S. Fell ◽  
Sara A. Pace ◽  
Justin B. Siegel ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Chemical Engineering ◽  
Animal Cell ◽  
Economic Assessment ◽  
The United States ◽  
Economic Viability ◽  
Monoclonal Antibody Production ◽  
Technological Performance ◽  
Low Volume ◽  
Cost Factors

Interest in animal cell-based meat (ACBM) or laboratory-grown meat has been increasing; however, the economic viability of these potential products has not been thoroughly vetted. Recent studies suggest monoclonal antibody production technology can be adapted for the industrialization of ACBM production. This study provides a scenario-based assessment of the projected cost per kilogram of ACBM produced in the United States based on cellular metabolic requirements and process/chemical engineering conventions. A sensitivity analysis of the model identified the nine most influential cost factors for ACBM production out of 67 initial parameters. The results indicate that technological performance will need to approach technical limits for ACBM to achieve profitably as a commodity. However, the model also suggests that low-volume high-value specialty products could be viable based on current technology.

Role Stress and Sense of Control Predict Using Food to Cope With Stress in Midlife Women

2021 ◽  
pp. 089826432110110
Author(s):  
Dana R. Riedy ◽  
Ashley MacPherson ◽  
Natalie D. Dautovich
Keyword(s):  
Work Stress ◽  
Underlying Mechanism ◽  
The United States ◽  
Role Stress ◽  
Work And Family ◽  
Midlife Women ◽  
Sense Of Control ◽  
Study Results ◽  
Using Data ◽  
Significant Mediator

Objective: The current study examined the association between role stress and using food to cope with stress in midlife women and examined sense of control as a potential underlying mechanism. Methods: An archival analysis was performed using data from 638 midlife women from the Midlife in the United States II study. Results: Hierarchical linear regression analyses demonstrated that work stress (β = .180, p < .001) and family stress (β = .138, p < .05) significantly predicted using food to cope with stress. Sense of control was a significant mediator between work stress and using food to cope with stress ( b = 0.02, 95% CI [.0014, .0314]). Discussion: Midlife women with higher role stress related to work and family are more likely to use food to cope with stress, and sense of control seems to be the link between work stress and using food to cope.

Effect of Changing a Traffic Control Device Color on Driver Behavior and Perception across Different Age Groups

2021 ◽  
pp. 036119812110111
Author(s):  
Hatem Abou-Senna ◽  
Mohamed El-Agroudy ◽  
Mustapha Mouloua ◽  
Essam Radwan
Keyword(s):  
Traffic Control ◽  
Traffic Management ◽  
Driving Simulator ◽  
Age Groups ◽  
The United States ◽  
Time Of Day ◽  
General Purpose ◽  
Traffic Density ◽  
Driving Conditions ◽  
And Performance

The use of express lanes (ELs) in freeway traffic management has seen increasing popularity throughout the United States, particularly in Florida. These lanes aim at making the most efficient transportation system management and operations tool to provide a more reliable trip. An important component of ELs is the channelizing devices used to delineate the separation between the ELs and the general-purpose lane. With the upcoming changes to the FHWA Manual on Uniform Traffic Control Devices, this study provided an opportunity to recommend changes affecting safety and efficiency on a nationwide level. It was important to understand the impacts on driver perception and performance in response to the color of the EL delineators. It was also valuable to understand the differences between demographics in responding to delineator colors under different driving conditions. The driving simulator was used to test the responses of several demographic groups to changes in marker color and driving conditions. Furthermore, participants were tested for several factors relevant to driving performance including visual and subjective responses to the changes in colors and driving conditions. Impacts on driver perception were observed via eye-tracking technology with changes to time of day, visibility, traffic density, roadway surface type, and, crucially, color of the delineating devices. The analyses concluded that white was the optimal and most significant color for notice of delineators across the majority of subjective and performance measures, followed by yellow, with black being the least desirable.

scholarly journals The Impacts of Discrimination and Filial Caregivers’ Age on Aspects of Physical Health

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 360-360
Author(s):  
Barbara Hodgdon ◽  
Jen Wong
Keyword(s):  
Physical Health ◽  
Family Caregivers ◽  
Family Caregiving ◽  
Chronic Conditions ◽  
The United States ◽  
Life Course Perspective ◽  
Late Adulthood ◽  
Study Results ◽  
The Face ◽  
The Impact

Abstract Filial caregivers (e.g., individuals caring for a parent or parent-in-law) are a part of the growing number of family caregivers in midlife and late adulthood. The responsibilities that filial caregivers navigate in midlife and late adulthood may expose them to multiple types of discrimination that may decrease their physical health, though this relationship has been understudied. As numbers of family caregivers grow, it is important to examine the potential vulnerability of younger and older filial caregivers’ physical health in the context of discrimination. Informed by the life course perspective, this study compares the physical health of younger (aged 34-64) and older (aged 64-74) filial caregivers who experience discrimination. Filial caregivers (N=270; Mage=53; SD=9.37) from the Midlife in the United States (MIDUS-II) Survey reported on demographics, family caregiving, daily discrimination, self-rated physical health, and chronic conditions via questionnaires and phone interviews. Regression analyses showed no differences between younger and older adults’ self-rated physical health or average chronic conditions. However, moderation analyses revealed that younger filial caregivers who experienced greater discrimination reported poorer self-rated physical health than their older counter parts as well as younger and older filial caregivers who experienced less discrimination. Additionally, younger caregivers with greater discrimination exposure exhibited more number of chronic conditions as compared to other caregivers. The study results highlight the impact of the intersection between filial caregivers’ age and discrimination on physical health. Findings have the potential to inform programs that could promote the health of filial caregivers in the face of discrimination.

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