Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 56 for “"Pavement surface"”.
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Enhancing Pavement Surface Macrotexture Characterization
… for transportation engineers is to understand pavement surface properties and their positive and negative effects on the user. This can improve the design of the infrastructure, adequacy of tools, and consistency of methodologies that are essential for transportation practitioners regarding …
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Evaluation Of Pavement Surface Friction Seasonal Variations
Wet-pavement friction is one of the most important pavement characteristics in relation to highway safety. This property is difficult to measure because it is affected by many vehicle, driver, pavement, and environmental parameters. In particular, it has been observed that both short- and long-term …
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Pavement Surface Characteristics Evaluation Using Vehicle-Based Data Collection
Various methods are used to collect pavement surface conditions, varying from manual checks by employees to specialized equipment. However, traditional methods usually require expensive specialized equipment and are time-consuming and costly. This thesis examines the use of connected vehicles (CV) …
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Artificial Intelligence-Based Prediction of Permeable Pavement Surface Infiltration Rates
Permeable pavements are a type of low impact development technology that is an alternative to conventional asphalt pavements. These pavements are used to address urban stormwater runoff concerns through infiltration and storage. Overtime, sediments carried by stormwater runoff degrade the …
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Effect of pavement surface properties on life cycle cost analysis
… methods used in determining the best alternative pavement project. The two main pillars of LCCA are user costs and agency costs. User costs are incurred during normal transportation operation and when there is a work zone present. Costs that occur during normal operating conditions are due to …
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Computer-based segmentation and interpretation of pavement surface distress images
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1990.
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The Effect of Tree Shade and Snowpack Cover on Pavement Surface Temperature
The effects of tree shade on the surface and internal temperature of pavement structures can be significant throughout the year. While much work has been done in researching the influence of tree cover on localized urban heating during hot summer months, less effort has been put towards the …
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Quantifying the Impact of Pavement Surface Properties on Road Safety: A Data-Driven Approach
… on volumetric exposure and geometry and omit pavement surface characteristics that govern tire–road interaction. Despite the growing availability of network level surface data such as Skid Friction Number at 40 mph (SFN40), Macrotexture via Mean Profile Depth (MPD), and pavement age and …
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Theory and methods of analyzing infrastructure inspection output : application to highway pavement surface condition evaluation
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1990.
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Effect of Air Temperature, Vehicle Speed, and Pavement Surface Aging on Tire/Pavement Noise Measured with On-Board Sound Intensity Methodology
… consistent work was made with focus on tire/pavement noise measured over different pavement surfaces, and under different environmental conditions, and different speeds. In a parallel way, work was conducted for the development, improvement, and practical use of the On- Board Sound Intensity …
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A study of the response of geosynthetic reinforced flexible pavement test sections to dynamic loading
… the construction of eighteen laboratory flexible pavement test sections. The test sections were designed to simulate a low- traffic volume secondary road built over a weak subgrade. Three types of geosynthetics were used: two types of woven geotextiles; and a geogrid. The test sections were …
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Comparison of Surface Characteristics of Hot-Mix Asphalt Pavement Surfaces at the Virginia Smart Road
Pavement surface characteristics are important to both the safety of the pavement surface and the comfort of the drivers. As of yet, texture and friction measurements have not been incorporated into the design of pavement surfaces. Seven different wearing surface mixtures, placed at the Virginia …
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Development of structural condition thresholds for TSD measurements
… States (b) deflection thresholds to classify the pavement structural condition obtained from the TSD for a small subset of the Pennsylvania secondary road network. The results of the field evaluation included: (1) repeatability of the TSD, (2) ability of the TSD to identify pavement sections with …
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Vehicle Axle Detection and Spacing Calibration Using MEMS Accelerometer
… especially trucks has an important role in both pavement maintenance and highway planning strategy. An advanced microelectromechanical system (MEMS) accelerometer for vehicle classification based on axle count and spacing was designed, tested, and applied to the pavement. Vehicle-pavement …
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Design of Wet Surface Traffic Signal Timing Change Intervals
… time stopping behavior. Rainy weather and wet pavement surface conditions may result in changes in both driver behavior and vehicle performance. The research presented in this thesis quantifies the impact of wet pavement surface and rainy weather conditions on driver perception-reaction times …
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Development of potholes from cracks in flexible pavements
… localized loss of material or depression on road pavement surface. The development of cracks and the formation of potholes on road surface are widespread problems in road construction and maintenance. The objective of this study is to develop mathematical models to compute stresses and deflections …
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The Effect of Pavement Temperature on Frictional Properties of Pavement Surfaces at the Virginia Smart Road
Wet-pavement friction is a public concern because of its direct relation to highway safety. Both short- and long-term seasonal variations have been observed in friction measurements. These variations have been attributed to different factors, such as traffic, rainfall, and temperature. Since both …
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Estudo de irregularidades de superfície das pistas de pouso de dois aeródromos militares
Interaction airplane-pavement and criteria for pavement surface unevenness evaluation is presented. An initial study with the BPR roughmeter in two Military Aerodrommes is presented. Topographic levelling of points one meter from each other and data analysis either through drafted profiles and …
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Return to Traffic of Full Depth Reclamation Pavements
… rehabilitation treatment for deteriorated pavements. However, when using asphalt emulsion based rehabilitation techniques one of the most challenging aspects of FDR is determining when traffic can be returned to the rehabilitated pavement surface. Since asphalt emulsion mixtures need ample …
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Enhancing Network-Level Pavement Macrotexture Assessment
Pavement macrotexture has been shown to influence a range of safety and comfort issues including wet weather friction, splash and spray, ambient and in-vehicle noise, tire wear, and rolling resistance. While devices and general guidance exist to measure macrotexture, the wide-scale collection and …
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