VT Data - 2018 Drive Test US Cellular

This dataset contains mobile wireless download speed test results and areas where the PSD (Vermont Public Service Department) challenged mobile wireless service asserted by wireless carriers. DOWNLOAD SPEED TEST RESULTS Results from download speed tests that were conducted in September-December 2018 are contained by 6 point feature-classes, each with results for a particular carrier. PSD staff employed the android smartphone application G-NetTrack to conduct download speed tests at approximately 300 meter intervals along all federal-aid highways. The point feature-classes are very detailed and more suitable when zoomed into the neighborhood scale. All point feature-classes have the same field schema, which includes these fields: timestamp: Date and time at which the data point was collected. signal_str: Signal strength (RSRP in dBm). download_s: Download speed (in Mbps). latency: The round-trip time for a request to a website, in milliseconds. DRIVE-TEST BLOCKS Drive-test blocks (Utility_DriveTest_poly_Blocks) is a polygon feature-class that is composed of 1-kilometer blocks; it has a field for each of the 6 carriers; the fields show the average download speed recorded in each block for each carrier. The fields also include a composite field (All_) that contains averages of all carriers, masking variation in coverage between individual carriers. "999" indicates no test was conducted for the carrier in that block. Drive-test blocks are generalized information and are suitable when zoomed at various scales. A BLOCK DOES NOT INDICATE SERVICE THROUGHOUT A BLOCK; use the point feature-classes for detailed data and judge accordingly. WIRELESS CHALLENGE BLOCKS Wireless Challenge Blocks (Utility_DriveTest_poly_VTMFCIIChallengeBlocks) depicts the status of each block in the submission of the PSD in the FCC Mobility Fund Phase II Challenge process. It shows challenges to mobile wireless service asserted by wireless carriers A value of 0 in the Area_1 field indicates that the challenge was rejected, either because a) the block is already largely eligible, or b) because no tests below 5 Mbps were submitted. DISCLAIMER VCGI and the State of VT make no representations of any kind, including but not limited to the warranties of merchantability or fitness for a particular use, nor are any such warranties to be implied with respect to the data.本数据集包含移动无线下载速度测试结果，以及佛蒙特州公共服务部（PSD, Vermont Public Service Department）对无线运营商宣称的移动无线服务提出质疑的相关区域。 ### 下载速度测试结果 2018年9月至12月开展的下载速度测试结果被划分为6个点要素类（point feature-classes），每个要素类对应一家特定运营商的测试成果。佛蒙特州公共服务部工作人员借助安卓智能手机应用G-NetTrack，沿所有联邦援助公路以约300米的间隔点位开展下载速度测试。该点要素类细节极为详实，适合在社区邻里尺度下放大查看。所有点要素类具备统一的字段结构，包含以下字段： - timestamp：数据点采集的日期与时间 - signal_str：信号强度（参考信号接收功率RSRP, Reference Signal Receiving Power，单位为dBm） - download_s：下载速度（单位为Mbps） - latency：网站请求的往返时延，单位为毫秒 ### 路测区块 路测区块（Utility_DriveTest_poly_Blocks）为多边形要素类，由边长1公里的区块组成，每个字段对应6家运营商之一，字段值为对应运营商在该区块内记录的平均下载速度。字段中还包含一个复合字段（All_），用于统计所有运营商的平均下载速度，可抹平不同运营商间的覆盖差异。字段值为"999"时，表示该区块未针对对应运营商开展测试。路测区块为概括性统计信息，适用于多种缩放尺度。**注意：单个区块并不代表该区块全域均提供服务，请使用点要素类获取详细数据并据此进行研判。** ### 无线质疑区块 无线质疑区块（Utility_DriveTest_poly_VTMFCIIChallengeBlocks）用于呈现佛蒙特州公共服务部在联邦通信委员会（FCC）移动基金第二阶段质疑流程中的提交区块状态，展示了无线运营商对其宣称的移动无线服务提出的质疑情况。Area_1字段取值为0时，表示该质疑被驳回，原因包括两种：a) 该区块已基本符合资格要求；或 b) 未提交低于5 Mbps的测试数据。 ### 免责声明 佛蒙特州地理空间信息委员会（VCGI, Vermont Center for Geographic Information）与佛蒙特州不对本数据集作出任何形式的陈述或担保，包括但不限于适销性或特定用途适用性的默示担保，亦不暗示任何此类担保。