Public Perceptions of the Midwest’s Pavements - Wisconsin - Phase I (Winter Ride)

The Wisconsin Winter Ride Survey was designed to determine the extent to which drivers were tolerant of the rougher ride of pavements on rural two-lane highways in the winter. Survey objectives, as such, were centered around this primary question of winter ride tolerance. A telephone survey was conducted by the Wisconsin Survey Research Laboratory (WSRL), which added questions to its quarterly Wisconsin Opinion Poll for the data collection period of January 15 to March 15, 1997. A similar survey focusing only on the topic of winter driving on rural highways was conducted in Minnesota during the same period. Random digit dial samples were drawn for both states according to accepted sampling procedure. The survey data set provided by WSRL included 417 respondents. Conclusions derived from the Wisconsin Winter Ride Survey included the following. Overall, Wisconsin respondents were predominately tolerant of the pavement’s potentially rougher ride in winter. Three-fourths of the 173 respondents who had noticed a change in the pavement indicated that they were more tolerant of the rough ride in winter than they would be the rest of the year. The extent to which motorists noticed changes in the pavement was influenced by the driving and vehicle characteristics. Respondents who drove more frequently on rural two-lane highways and those driving trucks, full-size vans or sport utility vehicles were more 2 likely to notice changes. The latter finding suggests that differences in suspension and ride entered in for respondents driving cars versus those driving trucks. It follows, therefore, that noticing pavement changes generally increased as ratings of the vehicle’s ride quality declined

Weighing Vehicles in Motion [1965]

An agreement between the Kentucky Department of Highways and the University of Kentucky Research Foundation dated October 1, 1964 defined the minimum objectives of the subject research project as follows: A. Developing and furnishing plans for an in-stream transducer system for dynamic axle weighing with manufacturers\u27 specifications for the components required. B. Constructing and furnishing a scale having an optimum mechanical configuration and which would perform the dynamic axle-weighing function in an overall data-gathering system, as determined in A. above. This report describes the way in which these objectives were attained by the project staff during the period October 1, 1964 - September 30, 1965. Other activities pertinent to the work are also described

DOC 2020-07 Master of Construction Engineering and Management

Legislative AuthorityREFERENCE: DOC 2019-03 Actions Pertaining to Degree Programs and Academic Departments (Revised

Feasibility Study Of The Queen's University Wave Energy Device

In order to assess the Queen's University device on a more realistic basis than in 1978 it has been found expedient to adopt a point absorbing device which is directly moored to the sea bed via a rigid tension leg system (shown schematically in Fig. 1). This type of mooring effectively restricts the heave motion of the device and as a consequence it corresponds closely with the fixed canopy tests which have been carried out in our upgraded test facility over the past 2 months. These tests have shown excellent repeatibility and the extraction efficiencies have been found to be considerably greater than those for the J 978 device. It was therefore considered logical at this time to concentrate our efforts on this system especially as it was estimated that the costs of moorings and overall structures would not be appreciably altered from those for a less restrained device. The other alternative of assessing a device based on the estimated drop-off in extraction efficiency, which would occur if the canopy was not fully fixed against heave motion was abandoned for this feasibility study as it would have been based on too many uncertainties. In the near future when the appropriate series of model tests on the flexible mooring system have been carried out it is intended that a comparative feasibility study will be made. At this time it is important to emphasise that the hydrodynamic model studies have not as yet yielded the optimum configuration for the form of device being considered this year and as a consequence the overall costs are still likely to be pessimistic. It is in this context and on the understanding that the consultants will attempt to take these consideration s into account that the team embarked on this further feasibility study. The main objectives of this study were to: ( 1) obtain an approximate overall estimate of the cost of the latest form of the QUB device for use in comparison with other wave energy devices and with conventional thermal power systems. and (2) assess the relative contributions of moorings, structures, electrical and turbine to the cost of the overall system. As in 1978 the device team does not consider that a comprehensive submission can be made at this time. However, attempts have been made to produce more realistic general arrangement drawings of the proposed structure and a more detailed appraisal has been made of possible mooring arrangements and the generation and transmission system