The dataset a. The dataset to which the licence relates consists of all the databases, documentation and other data files and documents that form part of this dataset, which have been transferred by the Depositor.
The dataset. The systematic analysis used information from a comprehensive homogeneous segment dataset developed during previous research (van Xxxxxxxxx). Segments located within a rural area (i.e. outside urban boundaries as defined by FHWA) with one through lane per direction were included in the systematic assessment. The original homogeneous data were assembled using geoprocessing in ArcGIS 9.0 and dataset manipulation in the SAS 9.1 environment. The researchers used the ArmCalc module to combine data from different years. The ArmCalc module is necessary since highway milepost may change from year to year, thus requiring changes in the linear referencing system (LRS). The WSDOT Traffic Data Office (TDO) supplied the ArmCalc module. The data development process also accounted for modifications of the highway system over the analysis years. 1997 and 1998 were excluded because complete collision data are not available for these years. Data from 2006 was not included in the report because traffic volumes were not available at the time of completion of the project report. Annual averages were generally calculated for the 1999 to 2005 period. Table 1 provides the distribution of segment lengths in the homogeneous dataset for two-lane rural highways. Table 1: Data Elements in Analysis Dataset DATASET ELEMENTS YEARS SOURCE Traffic volumes 1999 - 2005 WSDOT TDO TRIPS Dataset Geometric features: horizontal curves, vertical curves, grades 1999 – 2005 WSDOT TDO TRIPS Dataset Intersection locations and characteristics 1999 – 2005 WSDOT TDO TRIPS Dataset Lane configuration (lane width, shoulder width, special use lanes, auxiliary lanes) 1999 - 2005 WSDOT TDO TRIPS Dataset Motor vehicle collision data 1993-1996, 1999 - 2005 WSDOT TDO TRIPS Dataset Washington State Route Network for 2005-12-31 2005 WSDOT GIS layers as developed and maintained by the Office of Information Technology at WSDOT (xxxx://xxx.xxxxx.xx.xxx/mapsdata/geodatac atalog/default.htm). Urban boundaries 1999 - 2005 Pavement characteristics 1999 – 2005 The WSDOT Pavement Management System (WSPMS) that contains pavement specific data Annual weather characteristics 1993-1996, 1999 - 2005 Daily weather data from NOAA, providing information regarding rainfall, snow, and observed weather. Socio-demographic characteristics 2000 and, 2006 US Census data for 2000 by block group, using data from both the Summary File 1 and 3 datasets (US Census 2000) K12 school locations 2005 Office of Superintendent of Public Instruction i...
The dataset. Data from all 114 patients was used in tests between demographic factors, treatment groups, and treated versus fellow eyes. Of the 114, 8 patients had EUA’s at the 1 year of age follow up visit where keratometry measurements were not made. Additionally, 1 patient did not have an EUA at the 1 year visit. This left 105 patients with keratometry measurements at 1 year of age. All comparisons and tests for demographic factors, treatment groups, and treated versus fellow eyes at 1 year of age, and the change between baseline and 1 year of age, were based on these 105 patients. Of those 40 patients who had surgeries reviewed by Xx. Xxxxxxxxx, 4 did not have keratometry measurements at 1 year of age; the comparisons and the change variables for all surgical factors excepting treatment were thus among 36 patients.
