Master of Science / Department of Civil Engineering / Sunanda Dissanayake / Rapid increases are estimated in the percentage of elderly among the U.S. population starting in 2010. A majority of the older Americans depend on automobiles to meet their transportation needs either because of lack of public transportation or by choice. Ninety percent of total trips made by the elderly are by personal vehicle and seventy percent of this number involves the elderly driving the vehicles. However due to the aging process, older drivers experience a natural decline in sensory, cognitive, and other mental and physical capabilities as compared to younger drivers. This situation, combined with an imperfect highway infrastructure is making older drivers one of the most critical groups in terms of highway safety, thus demanding safer driving conditions. Safety concern for older drivers arises when the fatality rate per mile driven is considered, as exposure is one of the crucial factors contributing to increased fatality risk of older drivers. Hence, exposure reported in Billion Vehicle Miles Traveled (BVMT) was considered for this study. Crash data and exposure data were used to compute the fatality rates. Sources for this data are the Fatality Analysis Reporting System (FARS) and National Household Travel Survey (NHTS). A basic characteristics study was completed to compare the fatality risk of younger (16-24 yrs), middle-aged (25-64 yrs), and older drivers (65+ yrs). Crash details were screened to study the characteristics of older drivers involved in fatal crashes. Risk for older drivers due to other involved drivers of all ages divided into groups was studied to understand their distribution. A number of statistical methods like the chi-square test of independence, odds ratio and double paired comparison estimates were applied to study contributing factors of older driver’s increased fatal crash involvement. Results from the characteristics study for the elderly indicate that a majority of fatal crashes occur under daylight conditions with relatively higher seatbelt usage and non-alcoholic driving on straight level roads, which are generally considered as safer driving conditions. Other factors studied include vehicle-related variables like body type; manner of collision; roadway-related variables like roadway function class, month of the crash, and day of the week; and driver-related variables like race. Roadway functional class, vehicle body type, travel speed, number of drunk drivers, and the month in which the fatality occurred were found to have strong correlation with age of the older driver. Results from paired comparisons were used to estimate the fatality risk of older occupants as drivers and passengers under two different conditions considered simultaneously. Older drivers were found to have more fatality risk compared to older passengers. Recommended measures are also discussed to enhance older driver safety in the U.S.

Master of Regional and Community Planning / Department of Landscape Architecture/Regional and Community Planning / Larry L. Lawhon / Affordable housing is an important component of Transit-Oriented Development (TOD) because it provides lower income households the option to live an automobile-free lifestyle. A TOD, for this research, can be defined as a development located next to a transit line which provides small-scaled amenities and pedestrian activities. It also integrates a mix of uses, such as residential, retail, and public uses. This report focuses on the residential portion of TOD by identifying the importance of affordable housing in Transit-Oriented Development. In order to explore affordable housing in TOD, a case study was conducted of an existing TOD in the Denver metropolitan region. This TOD, known as the CityCenter Englewood TOD, is specifically located in Englewood, Colorado. This report explores the policy decisions that Englewood made when deciding not to integrate affordable housing provisions into the development. The affordable housing situation in Englewood is rather complicated. A review of census data suggests that affordable housing is needed in the community, while community officials state that Englewood is contextually affordable compared to the Denver metropolitan region. The conclusion of this report identifies the characteristics of the Englewood community that portray little tangible need for additional affordable housing units in the year 2010. However, according to the “Best Practices” Study of this report, other TOD communities do show various levels of tangible need for a mixed-income environment.

Master of Agribusiness / Department of Agricultural Economics / Allen M. Featherstone / As the U.S. economy has changed, the use of diesel vehicles has increased. With this increase, has come an increase in the demand of highly trained technicians to work on those vehicles. North Arkansas College of Harrison, AR is looking for opportunities to keep its program offerings current with the educational demands of its potential students. During the last few years, North Arkansas College has received requests to start a diesel vehicle maintenance program. This thesis analyzes the feasibility of a diesel vehicle maintenance program at North Arkansas College. To determine the feasibility of such a program, all major aspects of the potential program must be considered and analyzed. The key questions addressed are: what is the interest level in the community for a diesel vehicle maintenance program, what are the major capital costs of starting the program, what would the potential operating budget resemble, and how would the program fit into the current field of area diesel maintenance programs? To study the feasibility of a potential diesel vehicle maintenance program at North Arkansas College, four steps were completed. First, a survey was developed that measured the interest from potential students, prospective employers, and interested community members from the potential market of North Arkansas College. Second, research was done to understand how a potential diesel vehicle maintenance program would fit into the current marketplace of established diesel maintenance programs. This was done by researching and comparing area programs to the type of programs that North Arkansas College offers and the possible model of a potential diesel vehicle maintenance program. Next, research was conducted to estimate the capital costs of starting a diesel vehicle maintenance program, as well as the potential operating budget. This was done by developing blueprints of a potential floor plan, a building to house the program, and the potential areas of study in the program. Based on these blueprints, actual bids and estimates were collected to calculate potential capital and operating costs. Finally, analysis was conducted to determine if the outcomes of a potential diesel vehicle maintenance program would fulfill the mission of North Arkansas College. The analysis of the feasibility of a diesel vehicle maintenance program at North Arkansas College reveals that there is interest from all three parts of the community in starting a diesel vehicle maintenance program. The research also revealed that the program would be a fit in the marketplace if it was an affordable, three semester program that covered the basics of the diesel powered vehicle. Also, research of the potential costs and revenues of the program reveals that the program would be sustainable. Finally, a diesel vehicle maintenance program would have much synergy with the current programs already offered at North Arkansas College. In the end, the results suggest that it is worthwhile to move forward towards starting a diesel vehicle maintenance program.

Doctor of Philosophy / Department of Industrial & Manufacturing Systems Engineering / Malgorzata J. Rys / Centerline rumble strips (CLRS) are effective in preventing cross-over crashes and are promoted in the United States (U.S.) as a low-cost safety measure. However, there may be negative issues and/or concerns that question their use under certain road conditions. This dissertation is the result of studying these issues and concerns to provide guidance to policy makers on future installations of CLRS, based on current good practices and on the results of specific investigations of exterior noise, safety effectiveness, economics, and drivers’ behavior, including their interaction with shoulders and shoulder rumble strips (SRS). From a survey conducted, good practices in the U.S. were summarized. From a before-and-after study of CLRS safety effectiveness, results showed that total correctable crashes were reduced by 29.21%. Crashes involving fatalities and injuries were reduced by 34.05%. Cross-over crashes were reduced by 67.19%, and run-off-the-road crashes were reduced by 19.19%. Both Naïve and Empirical Bayes methods were applied and showed statistically similar results. There was no statistical difference between football shaped and rectangular shaped CLRS. From the external noise study performed, it was found that external noise depends on vehicle speed, type of vehicle, and distance. Both football and rectangular CLRS substantially increased the levels of external noise at distances up to 45 m (150 ft). Therefore, before installing CLRS, the distance from houses or businesses should be considered. A distance of 60 m (200 ft) was recommended as the limit of the potential exterior noise problem area. From a study of drivers’ behavior, the analyzed configurations of rumble strips and shoulder width levels affected vehicular lateral position and speed levels, although speed deviations were not practically significant. The study of safety performance function models provided technical and economical recommendations for installation of CLRS. Overall, this study recommends the installation of CLRS on rural, two-lane, undivided rural roads in Kansas. Both patterns, rectangular and football, currently installed in Kansas have provided crash reductions, which have been reflected in economic benefits for society. Shoulder width and traffic volume should be considered as crash predictors for enhancement of the benefits. Guidelines were recommended for future better applications of CLRS.

Master of Agribusiness / Department of Agricultural Economics / Christine Wilson / The objective of this thesis is to examine the opportunity cost, both financial and efficiency, of inbound railcars of wheat that are not optimally loaded and shipped to ConAgra Mills’ facilities. In performing an analysis of data showing actual versus optimal weights, a cost will be assigned to determine how much “dead freight” or extra freight is being paid to railroads for space not utilized. Throughout the analysis, it can be determined which shippers are lacking efficiencies in loading as well as those who are meeting ConAgra Mills’ expectations. To accomplish this objective, data were extracted from various sources for an entire fiscal year and 22,351 data observations were analyzed. The information was specific to both individual railcars as well as the shipments as a whole. These data points were analyzed in two ways, financial and capacity/efficiency. Financially, a cost was assigned to each railcar that was under the railcar’s goal weight. From a capacity perspective, railcars were analyzed on a shipment basis to indicate if equipment could be saved by more efficient loading. The study determined that savings could be found in every situation analyzed. It was determined that in addition to inbound shipments from outside shippers, inter-mill shipments between ConAgra Mills facilities were affected by loading inefficiencies. There could be an opportunity for further analysis to determine the full scope of savings beyond the limitations of this study. The main limitation of this thesis was the primary source of data.

Master of Regional and Community Planning / Department of Landscape Architecture/Regional and Community Planning / Jason Brody / The design of a transit-oriented development (TOD) is a major concern with regards to its functionality and prospects for success. The Truman Sports Complex in Kansas City, Missouri, home of two professional sports venues, has a unique location on a proposed transit corridor, the Rock Island. This corridor is planned to run between downtown Kansas City and suburban Lee's Summit. Therefore, the Truman Sports Complex site is a natural choice for a TOD. Building a TOD at the Truman Sports Complex will create a focal point on the Rock Island Corridor that connects Arrowhead and Kauffman Stadiums to downtown Kansas City and Lee's Summit via a regional transit system; bring together a diverse population through the creation of a walkable, mixed-use center located adjacent to the regionally known cultural institutions; and encourage new development around the junction of Interstates 70 and 435, a major transportation node in Kansas City, Missouri. This study, focusing on the design of such a project on this specific site, employs an extensive site analysis informing conceptual and specific planning ideas. It draws from a large body of literature and precedents, incorporating well established elements and principles into a new development that is both unprecedented in the Kansas City region and unique among TODs and sports-related districts. The main findings reveal the desirability of a strategy to develop on the existing parking surface of the Truman Sports Complex and reroute the Rock Island Corridor through the middle of the site so that it passes between the two stadiums. The final plan incorporates a mixed-use program, with retail, entertainment, offices, and apartments, into a variety of building types, including garden apartment buildings, low- to mid-rise mixed-use buildings, and high-rise towers, placed throughout the site in a compact, walkable grid pattern of streets. The significance of this project is that it can inform the Mid-America Regional Council, the Jackson County Sports Complex Authority, and other relevant stakeholders about the potential for developing on this site, and it demonstrates that a mixed-use, pedestrian-friendly, large-scale transit-oriented development with a wide variety of program is both viable and desirable at the Truman Sports Complex.

Master of Regional and Community Planning / Department of Landscape Architecture/Regional and Community Planning / Jason Brody / Transit-Oriented Developments (TODs) are an unprecedented typology in the Kansas City region, which predominately exhibits automobile-oriented development characteristics. The Truman Sports Complex in Kansas City, Missouri, home of two professional sports venues, has a unique location on a proposed transit corridor, the Rock Island, planned to run between downtown Kansas City and suburban Lee's Summit. Therefore, the site is a natural choice for a TOD. Building a TOD at the Truman Sports Complex will create a focal point on the Rock Island Corridor that connects Arrowhead and Kauffman Stadiums to downtown Kansas City and Lee's Summit via a regional transit system; bring together a diverse population through the creation of a walkable, mixed-use center located adjacent to the regionally known cultural institutions; and encourage new development around the junction of Interstates 70 and 435, a major transportation node in Kansas City, Missouri. This study employs extensive regional, market, and transportation analyses to inform specific planning and programming ideas. It draws from a large body of literature and precedents, incorporating well established elements and principles into a new development that is unique among TODs and sports-related districts. The project’s findings reveal that retail, multi-family housing, and office development at the Truman Sports Complex, supported by rail transit and strong tenants, would fill a void in regional business and population density close to downtown, and have the potential to be economically viable as a regional center through 2040. This research has also shown that in order to achieve the adequate density for pedestrian vitality on the site, high-rise development with limited single-family options is necessary. And perhaps the most important finding is that the rail line should be rerouted through the center of the site if Transit-Oriented Development at the Truman Sports Complex is pursued, in order to maximize the pedestrian-accessibility of land suitable to development and ensure that activity is concentrated around the stadiums. Overall, the significance of this project is that it can inform the Mid-America Regional Council, the Jackson County Sports Complex Authority, and other relevant stakeholders about the potential for developing on this site, and it demonstrates that a mixed-use, pedestrian-friendly, large-scale transit-oriented development with a wide variety of program is both viable and desirable at the Truman Sports Complex.

Master of Landscape Architecture / Department of Landscape Architecture/Regional and Community Planning / Mary Catherine (Katie) Kingery-Page / Human happiness is often overlooked in urban revitalization. Many studies have proven the benefits of regular exercise for overall health and happiness. Active transportation adopted as a major form of transportation has the potential to provide similar benefits. Wichita, Kansas, like many other mid-sized, American cities, prioritizes the car over the pedestrian. Currently, the plans for Douglas Avenue, the major thoroughfare, includes only minimal bicycle infrastructure, shared lane symbols (City of Wichita 2013). Lack of focus on the pedestrian and bicyclist only reinforces the auto-dominated downtown. Douglas Avenue is a missed opportunity and needs a re-envisioned strategy based upon current needs. I hypothesized that better understanding the lived biking experience of Downtown Wichita would help me to develop design recommendations that address current streetscape issues as they occur in daily life. This exploratory study documents the experiences of a small group of people who bicycle in or through downtown Wichita on a regular basis. First, participants recorded their experience visually and verbally by using GoPro cameras during a typical bike ride. Next, each participant reviewed their video with me, clarifying their comments and the overall experience. Dominant themes included: urban environment, bicycling infrastructure, road/traffic, safety and motorist behavior. The analysis of the bike rides and follow-up reflections were mapped over each participant’s route to reveal positive, negative, and neutral experiences categorized by theme. Final design strategies for selected areas (determined through analysis of experiences) were then produced based upon feedback and streetscape best practices. Bicyclists of Wichita are faced with many stressful situations during their daily routes. I have realized that downtown Wichita has more than a design problem to fix—an entire bicycle culture must be developed. I learned that while each participant was unique, they wanted the same things: safety, a pleasurable ride, and to be respected by motorists. Not all bicyclists’ needs can be answered through design; however, this proposal can help to create a safer and more pleasurable bicycling experience in downtown. An improved bicycle network provides humans with increased health, freedom to move, encourages and strengthens social connections, and provides a resilient form of transportation.

Master of Science / Department of Civil Engineering / Yacoub M. Najjar / Asset Management is a relatively new term in the transportation world. It involves a systematic approach to maintaining, upgrading and operating all transportation assets (including infrastructure) cost-effectively. With the Government Accounting Standards Board's Statement 34 (GASB 34) requiring all transportation entities to report all capital assets on their annual reports as well as the development of new software and technologies, Asset Management is becoming easier to implement and quickly becoming an important part of the transportation industry. In Kansas the Department of Transportation has developed and successfully utilized an Asset Management system for all assets including bridges, roadways, drainage structures and signs. Kansas counties however, do not have the funds and personnel to implement and maintain an Asset Management system similar to that of the KDOT. Asset Management systems have only been developed by counties with large populations, but even they have not reached the full potential of the system. This thesis discusses the importance of creating and maintaining an effective Asset Management system. Kansas counties were surveyed and asked a series of questions about their asset management systems, or lack thereof, as well as the successes and failures of these systems. The counties were asked how they prioritize maintenance, what software they are using, and what assets they have inventoried. The results of the questionnaire showed that counties with large populations have shown interest in implementing Asset Management systems and many have worked to implement such a system. Conversely, counties with small populations that do not have the resources have not implemented Asset Management systems. Recommendations for implementing appropriate Asset Management systems are made to counties in the three population ranges: i) less than 5,000, ii) between 5,000 and 50,000, and iii) greater than 50,000. These include software recommendations and creating inventories of all county assets including culverts, signs and pavements.

Master of Science / Department of Industrial & Manufacturing Systems Engineering / Malgorzata J. Rys / Emergency Medical Systems (EMS) are designed to handle emergencies. Fortunately, most emergencies faced have only one patient. The every day system is not designed to respond to emergencies in which there are many casualties. Due to natural disasters and terrorist attacks that have occurred over the past decade, mass-casualty disaster response plans have become a priority for many organizations, including EMS. The resources available for constructing such plans are limited. Physical simulations or practices of the plan are often performed; however, it is not until a disaster strikes that the capabilities of the plan are truly realized. In this paper, it is proposed that discrete-event simulations are used as part of the planning process. A computer simulation can test the capability of the plan under different settings and help planners in their decision making. This paper looks at the creation of a discrete-event simulation using ARENA software. The simulation was found to accurately simulate the response to the Greensburg tornado that occurred May of 2008. A sensitivity analysis found that the simulation results are dependent upon the values assumed for Volunteer Injury Rate, Injury Level, Information Dissemination Rate and Transportation Decision variables. When a disaster occurs, the local resources are overwhelmed and outside aide must be called in. Decision rules for when to request more outside ambulances and when to release them to send them home are evaluated. The more resources that are made available, the quicker patients receive medical care. However, when outside ambulances are called in, they are putting their home area at risk because it no longer has complete (or any) ambulance coverage. As the percent of coverage decreases, the amount of time that victims spend waiting for ambulances also decreases. Many decision rules were evaluated, resulting in various combinations of ambulance wait times and average percent coverage. It is up to Disaster Planners to determine how much of an additional wait can be assumed by the disaster victims to prevent outside districts from taking on unwarranted risk of low coverage.