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Forecasters say Tropical Storm Tammy has formed in the Atlantic_我的网站

A |      8 月 25 日消息，据央视新闻报道，北京轨道交通 22 号线（红庙 — 平谷）今日（8 月 25 日）正式开启空载试运行。

B |     MIAMI -- Tropical Storm Tammy formed Wednesday afternoon in the Atlantic Ocean, putting a group of islands on alert for its expected approach.The Miami-based National Hurricane Center said Tammy was centered at 5 p.m. EDT about 625 miles (1,005 kilometers) east of the Windward Islands. It was moving briskly to the west at 23 mph (37 kph) and expected to gradually strengthen in coming days.Tropical storm watches have been issued for Barbados, Dominica, and Martinique and Guadeloupe. Forecasters said tropical storm conditions were possible in the region starting within 48 hours and that further watches and warnings will likely be required Wednesday night or Thursday. Tammy is initially expected to spread heavy rains over the northern Windward and Leeward Islands through Friday and then across the U.S. and British Virgin Islands and Puerto Rico over the weekend, according to the hurricane center.The center's opening advisory on Tammy said total rainfall could measure between 3 and 6 inches (7-14 centimeters) with maximum amounts of 10 inches (25 centimeters) in some spots in the northern Windward Islands and Leeward Islands. Lesser rainfall amounts are expected in the British and U.S. Virgin Islands into eastern Puerto Rico, the hurricane center added.The prospect of heavy rains as Tammy nears those islands raises a threat of scattered flash flooding, urban flooding and isolated mudslides in higher terrain, according to meteorologists.。该线作为“轨道上的京津冀”标志性工程，是首条横跨京冀两地的城市轨道交通线路。空载试运行标志着 22 号线向年底基本具备开通条件目标迈出了关键一步，京津冀交通一体化正从蓝图加速驶向现实。22 号线（红庙 — 平谷）西起朝阳区红庙，东至平谷新城，全长约 79.1 公里，共设车站 20 座（北京段 15 座、河北段 5 座）。线路横跨北京朝阳、通州、平谷以及河北三河，串联起 CBD 核心区、北京城市副中心、河北燕郊、平谷新城等重点功能区。项目建成后，将实现河北省三河市与北京城市轨道交通网的“无缝衔接”，便利跨省通勤，显著增强北京城市副中心对北三县的辐射带动作用，以交通先行引导功能疏解与产业协同。据北京市重大项目办相关负责人介绍，22 号线是区域交通互联互通的“大动脉”。开通后，线路将在红庙站与 14 号线、管庄站与 1 号线（八通线）、北关站与 6 号线、城市副中心站与 6 号线及京唐城际实现高效换乘。该线速度优势明显，高架段最高时速达 160 公里，地下段达 120 公里，实现了“高铁速度”与“地铁密度”的完美结合。届时，从河北燕郊镇到北京城市副中心最快仅需 9 分钟，到朝阳 CBD 核心区红庙站最快约 28 分钟。据京投轨道公司相关负责人介绍，22 号线建设全过程贯穿科技创新。在智能建造方面，首次采用百米长轨工厂化预制与机械化铺设，同时运用高铁先进的精密测量、线路精调、动态测试等技术，实现线路的高平顺性；自主研发智能盾构施工体系，实现掘进全过程智能操控；平房停车场配套建设光伏发电项目，高架段大规模应用预制槽型梁，打造绿色施工新标杆。在智慧运营方面，建设了北京首条全面面向乘客服务的智能视频分析平台，实现客流监测、安全预警与乘客服务的深度融合。从报道获悉，按照计划，本次空载试运行将分两个阶段实施：第一阶段重点开展车辆、信号、通信等八大系统的综合联调与功能测试；第二阶段将严格按照运行图开展“跑图”试运行，对列车正点率、运行图兑现率等关键指标进行全方位验证，确保线路各项运行指标达到初期运营前安全评估标准。

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Published on:06:15:03