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MPC Research Reports
Filter by Author8 report(s) found for Xiao Qin 1 - 8 of 8 This study presents the application of the Highway Safety Manual (HSM) to rural state highways in South Dakota and provides important guidance and empirical results regarding how to calibrate HSM models. Calibration guidelines have been developed to facilitate future calibration activities. The calibration... Crashes of heavy trucks with bridge columns are random events with low probability of occurrence. In spite of the low odds, previous collision events have resulted in catastrophic partial or full collapse of bridges. AASHTO-LRFD Bridge Design Specifications requires bridge columns to be designed for... Most roads in the City of Madison, South Dakota were built more than 30 years ago, with chip seal as the primary maintenance practice. However, such treatments only provide temporary solutions to the surface and do not improve the structural deficiencies. To prevent accelerated pavement deterioration... Providing acute medical care outside of the hospital, Emergency Medical Services (EMS) is crucial in rural environments where hospitals are not close by and are difficult to access. This study used the National EMS Information System (NEMSIS) South Dakota data to exemplify the establishment of data-driven... Engineering economic analyses (EEA) apply economic methodologies to engineering problems for decision-making support. When conducting an EEA, interest and inflation rates are the two critical factors. Using inappropriate values for interest and inflation rates could affect decision-making, such as unfairly... Improved emergency medical services (EMS) will impact traffic safety and public health in rural communities. Better planned, designed, and operated roadway networks that connect hospitals with communities in need will enhance EMS performance. To provide safe, timely and quality services, it is necessary... In this study, the current SDDOT Road User Cost methodology and associated unit costs were evaluated and changes were implemented to the methodology to allow for a more complete analysis that aligns with the needs of each department and their use of RUC. The methodology was used to construct a worksheet... Given the sparsely distributed crashes across various highway systems, this study designed an empirical Bayes (EB) based sliding window technique within a spatial context. By examining roadway safety spatially, the safety analysts are able to account for high-risk locations completely within longer predefined... |
