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52 results for “Atlanta”
Energy and Emissions Impacts of Atlanta's Reversible Express Toll Lanes and High-Occupancy Toll Lanes
<p>This dataset is the MOVES-Matrix emission rates for the NCST project of Energy and Emissions Impacts of Atlanta’s Reversible Express Toll Lanes and High-Occupancy Toll Lanes, developed by our research team at Georgia Institute of Technology.</p> <p> </p> <p>The abstract of the project is as follows.</p> <p>This report summarizes the impact on corridor-level energy use and emissions associated with the 2018 opening of the I-75 Northwest Corridor (NWC) and I-85 Express Lanes in Atlanta, GA. The research team tracked changes in vehicle throughput on the managed lane corridors (extracted from GDOT’s Georgia NaviGAtor machine vision system after comprehensive QA/QC) and performed a difference-in-difference analysis to exclude regional changes, pairing test sites vs. control sites not influenced by the openings. The results show a large increase in overall peak-period vehicle throughput on the NWC, especially on I-575, due to the congestion decrease (20 mph speed increases at some locations). The increase in corridor-level energy use and emissions was smaller than vehicle throughput, but still significant. Predicted downwind maximum CO concentrations only increased from 1.81 ppm to 1.93 ppm(which remains extremely low). The increase in morning peak activity on the corridor likely resulted from diversion of some traffic into the peak from the shoulder periods, diversion of some traffic from other nearby freeway corridors, and diversion of local road traffic into the corridor. Unfortunately, without overall control volume totals and/or pre-and-post travel behavior surveys for the alternative commute routes, it is not possible to quantify the likely reductions in traffic flow and emissions that occurred along the other corridors that likely resulted from morning commute shifts. Hence, the team cannot draw reliable conclusions related to net regional or sub-regional impacts associated with the new managed lane corridors. The impact observed on the I-85 corridor was much smaller than on the NWC, especially at Indian Trail/Lilburn Road (far from the Express Lane Extension). After the Express Lanes opened, energy use and emission rates at Old Peachtree Road increased slightly (as uncongested vehicle speeds increased), but this increase may be short-lived as traffic on the corridor changes over time.</p> <p> </p>
Linguistic Atlas Projects - Atlanta Survey Project - Version 1
<p>Director:<br> William A. Kretzschmar, Jr.</p> <p>Status of work:<br> Field work complete in 2003. Direct CD recordings; some full transcriptions have been completed.</p> <p>Areas covered:<br> Fulton and DeKalb counties in the Atlanta, GA, metropolitan area.</p> <p>Subjects:<br> 18 speakers selected by random phone sampling, with later in-person interviews. African American and nonAfrican American subjects, stratified by gender and occupational status.</p> <p>Nature of recordings:<br> Guided conversational interview expected to last one hour, adapted from Western States interview. Fixed format elicitation in which speakers read words from cards. </p> <p>Archives:<br> Original materials are archived in the Special Collections repository of the Library, University of Georgia, Athens, Georgia 30602. For access to original materials, contact the Linguistic Atlas Project office.</p>
Records of Artema atlanta Walckenaer, 1837 from South Africa (Araneae: Pholcidae)
<p>Records of the spider <em>Artema atlanta </em>Walckenaer, 1837 from South Africa are presented. The general morphol-ogy of live specimens is discussed, and photographs are provided, with notes on their behaviour and distribution.</p>
Evaluating the Sustainability Impacts of Intelligent Carpooling Systems for SOV Commuters in the Atlanta Region
<p>This data repository provides the data used in the following research project supported by an NCST (UTC) grant: Evaluating the Sustainability Impacts of Intelligent Carpooling Systems for SOV Commuters in the Atlanta Region.</p> <p>Please refer to Data Format and Content in the research report for meta-data information</p> <p>1. ABM Trip Table (Data Set 1):<br> CarpoolSim_input.csv<br> 2. Traffic Analysis Zones (TAZ) Shapefiles (Data Set 2):<br> TAZ+ECs_TAZ.zip<br> 3. Employment Center Shapefiles (Data Set 3):<br> TAZ+ECs_TAZ.zip<br> 4. Shortest Paths (Data Set 4):<br> path_retention.zip<br> 5. Analytical Outputs (Data Set 5):<br> summ_stats_ind.csv<br> summ_stats.csv</p>
Dissolved organic carbon concentrations for seasonal synoptic sampling of 93 urban streams in Atlanta, Georgia (USA) from 2021-2022
This dataset contains dissolved organic carbon concentrations from surface water samples collected at 93 first- to fifth-order streams in the Altamaha, Chattahoochee, and Flint Watersheds draining a gradient of urban land use in the greater Atlanta, Georgia metropolitan area. Samples were collected four times (September 2021, December 2021, March 2022, and July 2022) to capture spatial and seasonal variation in DOC concentrations. Filtered stream samples were analyzed for dissolved organic carbon concentration. These data were collected as part of the Carbon in Urban Rivers Biogeochemistry (CURB) Project. Detailed field data and site data are published separately and can be linked using the “curbid” and “synoptic_event” columns in each dataset.
Dissolved organic matter characterization for seasonal synoptic sampling of 93 urban streams in Atlanta, Georgia (USA) from 2021-2022
This dataset contains dissolved organic matter (DOM) characteristics from surface water samples collected at 93 first- to fifth-order streams in the Altamaha, Chattahoochee, and Flint Watersheds draining a gradient of urban land use in the greater Atlanta, Georgia metropolitan area. Samples were collected four times (September 2021, December 2021, March 2022, and July 2022) to capture spatial and seasonal variation in DOM characteristics. Fluorescent optical properties were measured on filtered water samples to understand the chemical composition of DOM. Excitation-Emission Matrices (EEMs) were measured using a Horiba Aqualog spectrometer. DOM characteristics were quantified using both standard fluorescence and absorbance metrics as well as through parallel factor (PARAFAC) analysis. These data were collected as part of the Carbon in Urban Rivers Biogeochemistry (CURB) Project. Detailed field data and site data are published separately and can be linked using the “curbid” and “synoptic_event” columns in each dataset.
Field data for seasonal synoptic sampling of 93 urban streams in Atlanta, Georgia (USA), 2021-2022
This dataset contains field measurements taken during water sampling from 93 first- to fifth-order streams in the Altamaha, Chattahoochee, and Flint Watersheds draining a gradient of urban land use in the greater Atlanta, Georgia metropolitan area. Field collection took place during four synoptic sampling events(September 2021, December 2021, March 2022, and July 2022) to capture spatial and seasonal variation in stream conditions (specific conductivity, water temperature, dissolved oxygen, pH, ORP). Filtered stream samples were analyzed for dissolved organic carbon concentration and characteristics, available in separate datasets. These data were collected as part of the Carbon in Urban Rivers Biogeochemistry (CURB) Project. Detailed field data and site data are published separately and can be linked using the “curbid” and “synoptic_event” columns in each dataset.
Figs 201–207. Cleared female genitalia, dorsal views. 201. Artema atlanta Walckenaer, 1837 in Daddy-long-leg giants: revision of the spider genus Artema Walckenaer, 1837 (Araneae, Pholcidae)
Figs 201–207. Cleared female genitalia, dorsal views. 201. Artema atlanta Walckenaer, 1837 (AMNH, USA, Arizona, Tucson). 202. A. bunkpurugu Huber & Kwapong, 2013 (ZFMK Ar 10516, Ghana, Bunkpurugu-Nakpanduri). 203. A. nephilit sp. nov. (HUJ Ara 16020, Israel, Samar). 204. A. kochi Kulczyński, 1901 (MNHN AR 10169 part). 205. A. doriae Thorell, 1881 (ZFMK Ar 15234, Iran, Tehran Prov., Tochal). 206. A. transcaspica Spassky, 1934 (ZIN type vials). 207. Artema sp. c. (ZMMU, Pakistan, Baluchistan, Muslim Bagh). Scale lines: 0.5 mm.
Figs 208–214. Cleared female genitalia, posterior dorsal views. 208. A. atlanta Walckenaer, 1837 in Daddy-long-leg giants: revision of the spider genus Artema Walckenaer, 1837 (Araneae, Pholcidae)
Figs 208–214. Cleared female genitalia, posterior dorsal views. 208. A. atlanta Walckenaer, 1837 (AMNH, USA, Arizona, Tucson). 209. A. bunkpurugu Huber & Kwapong, 2013 (ZFMK Ar 10516, Ghana, Bunkpurugu-Nakpanduri). 210. A. nephilit sp. nov. (HUJ Ara 16020, Israel, Samar). 211. A. kochi Kulczyński, 1901 (MNHN AR 10169 part). 212. A. doriae Thorell, 1881 (ZFMK Ar 15234, Iran, Tehran Prov., Tochal). 213. A. transcaspica Spassky, 1934 (ZIN type vials). 214. Artema sp. c (ZMMU, Pakistan, Baluchistan, Muslim Bagh). Scale lines: 0.5 mm.
Figs 30–34. Artema atlanta Walckenaer, 1837 in Daddy-long-leg giants: revision of the spider genus Artema Walckenaer, 1837 (Araneae, Pholcidae)
Figs 30–34. Artema atlanta Walckenaer, 1837, ZFMK Ar 15217 (♀) and ZFMK Gui 82 (♂). 30. Female stridulatory ridges. 31. Absence of male stridulatory ridges. 32. Male chelicerae with frontal row of modified (cone-shaped) hairs. 33. Epigynal plate. 34. Modified (cone-shaped) hair on chelicerae process. Scale lines: 30–31 = 0.1 mm; 32 = 0.2 mm; 33 = 0.6 mm; 34 = 0.01 mm.
Figs 25–29. Artema atlanta Walckenaer, 1837, ZFMK Gui 82 and ZFMK Gui 111. 25–26, 28 in Daddy-long-leg giants: revision of the spider genus Artema Walckenaer, 1837 (Araneae, Pholcidae)
Figs 25–29. Artema atlanta Walckenaer, 1837, ZFMK Gui 82 and ZFMK Gui 111. 25–26, 28. Male ALS and PMS (arrows: one of the six small cylindrically-shaped spigots wider than others). 27. Male left bulb, prolateral-distal view. 29. Small teeth prolaterally on round end of process c. Scale lines: 25 = 0.06 mm; 26, 29 = 0.03 mm; 27 = 0.2 mm; 28 = 0.04 mm.
Figs 15–24. Artema atlanta. 15 in Daddy-long-leg giants: revision of the spider genus Artema Walckenaer, 1837 (Araneae, Pholcidae)
Figs 15–24. Artema atlanta. 15. Epigynum (MRAC 215041, Benin). 16–18. Male left pedipalp (MRAC 120766, Sudan), prolateral, dorsal, and retrolateral views. 19–21. Male left bulb and procursus, prolateral, dorsal, and retrolateral views, arrows in Fig. 20 show notches on distal margin of procursus. 22–24. Male chelicerae (same specimen), lateral and frontal views. Scale lines: 15, 19–24 = 0.5 mm; 16–18 = 1 mm.
Figs 3–8. Live specimens and habitats. 3. Artema atlanta Walckenaer, 1837 from Thailand, Ratchaburi. 4–5. A in Daddy-long-leg giants: revision of the spider genus Artema Walckenaer, 1837 (Araneae, Pholcidae)
Figs 3–8. Live specimens and habitats. 3. Artema atlanta Walckenaer, 1837 from Thailand, Ratchaburi. 4–5. A. nephilit sp. nov. from Israel. 6. Typical Artema web mass, in a cave in Petra, Jordan. 7–8. Caves populated by Artema nephilit sp. nov.: Oren Cave, Mount Karmel (7) and caves in the Eilat Mountains (8), Israel. Photos: BAH (3–4, 6–8), SA (5).
Dataset: Atlanta Braves Holdings, Inc. (BATRA) Stock Performance
This dataset provides historical stock market performance data for specific companies. It enables users to analyze and understand the past trends and fluctuations in stock prices over time. This information can be utilized for various purposes such as investment analysis, financial research, and market trend forecasting.
Dataset: Atlanta Braves Holdings, Inc. (BATRK) Stock Performance
This dataset provides historical stock market performance data for specific companies. It enables users to analyze and understand the past trends and fluctuations in stock prices over time. This information can be utilized for various purposes such as investment analysis, financial research, and market trend forecasting.
Figs 1-15. — 1. Artema atlanta Walckenaer, 1837 in East African pholcid spiders: an overview, with descriptions of eight new species (Araneae, Pholcidae)
Figs 1-15. — 1. Artema atlanta Walckenaer, 1837 from Mbutali, Kenya. — 2. Leptopholcus tipula (Simon, 1907) from Semuliki, Uganda. — 3. Smeringopus mpanga Huber, 2012 from Kalinzu F.R., Uganda. — 4. Pholcus taita Huber, 2011 from Taita Mountains, Kenya. — 5. Quamtana kabale Huber, 2003 from Ruwenzori, Uganda. — 6. Quamtana nyahururu sp. nov. from Thompson Falls, Kenya. — 7-8. Spermophora minotaura Berland, 1920 from Mt. Kenya (7: dark morph; 8: light morph). — 9. Spermophora mau sp. nov. from near Elburgon, Kenya. —10. Spermophora kirinyaga sp. nov. from Mt. Kenya, Kenya. — 11. Buitinga nigrescens (?) (Berland, 1920) from Ol Donyo Sabuk, Kenya. — 12. Buitinga ruhiza Huber, 2003 from Buhoma, Uganda. — 13. Buitinga batwa sp. nov. from Mgahinga Gorilla N.P., Uganda. — 14. Buitinga ruwenzori Huber, 2003 from Ruwenzori, Uganda. — 15. Buitinga griswoldi Huber, 2003 from Buhoma, Uganda. Photos BAH.
EAP21-0576.R1 - Implementing Community-Engaged Ecological Research in Proctor Creek, an Urban Watershed in Atlanta, GA
The Southeast Region of the U.S. Fish and Wildlife Service (USFWS) implemented community-engaged research in Proctor Creek, an urban watershed in Northwest Atlanta, Georgia, to sample for aquatic species of concern in Atlanta, Georgia’s Proctor Creek Watershed as a part of the Urban Waters Federal Partnership program. This research shifted the focus of the agency from the endangered and pristine natural spaces to a major city watershed negatively impacted by urbanization and other human influences for more than a century. Team members from USFWS, Proctor Creek Watershed residents, local students, and other stakeholders in the UWFP spent three months conducting stream surveys and participating in community-led events to build relationships and learn community priorities. The team collected data at 11 sites throughout the Proctor Creek Watershed, visually assessed each site, and collected aquatic species using dip nets, seines, and traps. We observed approximately 28 aquatic species, including 13 unique fish species, and eight macroinvertebrate species, including two unique crayfish species. We also observed varying degrees of ecological health throughout the watershed. Native aquatic animal species were found at all stream sites, no matter the condition of the stream. Through creating training resources and disseminating data among team members for future sampling, the team established pathways to keep natural resource stewardship sustainable outside of direct federal involvement. Through engaging in community-engaged research to achieve the mission of the agency, the USFWS Proctor Creek watershed survey helped shift the paradigm of how government agencies can connect their mission statements to the ever-changing complex needs of the American public.
A Modeling Framework for Near-Road Population Exposure to Traffic-Related PM2.5 and Environmental Equity Analysis: A Case Study in Atlanta, Georgia
<p>This is the dataset for the NCST project <em>"A Modeling Framework for Near-Road Population Exposure to Traffic-Related PM2.5 and Environmental Equity Analysis: A Case Study in Atlanta, Georgia"</em> by the Georgia Tech research team.</p> <p> </p> <p>Here is the abstract of the research: </p> <p>In this study, a modeling framework for population exposure to traffic-related PM2.5 with high spatiotemporal resolution is proposed and applied to the I-575/I-75 Northwest Corridor (NWC) in Atlanta, GA, for environmental equity analysis. The analyses retrieved trip data from the Atlanta Regional Commission’s (ARC) Activity-Based Model 2020 (ABM2020), after implementing path retention algorithms (Zhao, et al., 2019) to generate individual travel paths for more than 20 million predicted vehicle trips. Emission rates for each link were retrieved from MOVES-Matrix given the ABM link speed and facility type, the ARC’s county-level fleet composition data, and regional fuel properties and I&M program parameters. High-resolution downwind concentration profiles were predicted using EPA’s AERMOD microscale dispersion model with AERMET meteorology profiles for a huge array of receptors. Trip-end locations were derived from the ABM trip data, and the on-road trajectories for each person-trip (vehicle trace data) were derived from the travel paths through network. ABM synthetic household and person data were used in demographic assessment, and linked to representative household latitude and longitude locations in the Epsilon 2019 household demographic dataset. Individual exposure to traffic-related PM2.5 in time and space (average hourly concentration) was assessed by overlaying the second-by-second person location profiles (for 24 hours) against the hourly predicted PM2.5 concentration profiles. The analyses summarize the results across 16 demographic groups and the aggregate population exposure are compared to assess potential impact differences across demographics. High-income households in the corridor were exposed to less traffic-related air pollution as they tended to live further from the freeways. The analyses did not reveal large disproportionate negative impacts on low income groups along this specific corridor, but lager disproportionate negative impacts are expected elsewhere in the metro area due to the spatial clustering of income groups along other corridors. Overall, the research demonstrates the applicability of the modeling framework and describes how the various elements (e.g., link screening, dispersion modeling, path tracing, etc.) are optimized on the supercomputing cluster.</p>
Atlanta, Ga - Millennium Gate Museum
"The Millennium Gate Museum (also known as The Gate) is a triumphal arch and Georgia history museum located in Atlanta, on 17th Street in the Atlantic Station district of Midtown. Based on the Arch of Titus, the monument celebrates peaceful accomplishment.[1]" - from [Wikipedia](https://en.wikipedia.org/wiki/Millennium_Gate_Museum) Source: Objaverse 1.0 / Sketchfab
Using Multi-Modal Path-Specific Transit Trips in Transportation Social Sustainability Analysis: Case Study in Atlanta, GA
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