科学素养与生活应用·英语30篇（4）

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智能交通灯如何缓解拥堵

Adaptive traffic signals use radar, cameras, and connected vehicle data to monitor vehicle flow, waiting times, and pedestrian crossings in real time.
AI algorithms process this input every few seconds and adjust green-light durations dynamically—not according to fixed timers.
At intersections with low traffic, lights stay red longer for major roads but switch quickly when side-street cars or bikes are detected.
Coordinated systems along corridors create 'green waves,' letting vehicles travel several blocks without stopping if they maintain optimal speed.
Emergency vehicles trigger priority overrides—extending green phases or clearing paths ahead using V2I (vehicle-to-infrastructure) communication.
Data from thousands of intersections feeds city-wide dashboards that identify chronic bottlenecks and guide long-term road redesigns.
Energy use drops because idle time decreases, and LED signals themselves consume 85% less power than older incandescent units.
Privacy safeguards anonymize all camera footage and aggregate vehicle counts without tracking license plates or individuals.
Pilots in cities like Los Angeles and Helsinki show average commute delays falling by 12–25% after system upgrades.
This integration of sensing, computing, and civic infrastructure proves urban mobility can be both responsive and responsible.

听 → 读 → 学表达 → 懂 → 今天会说这一句 → 跟读录音 → 自己说一句。

Emergency vehicles trigger priority overrides—extending green phases or clearing paths ahead using V2I (vehicle-to-infrastructure) communication. 紧急车辆触发优先通行机制——通过车路协同（V2I）通信延长绿灯时间或提前清空前方路径。
Privacy safeguards anonymize all camera footage and aggregate vehicle counts without tracking license plates or individuals. 隐私保护措施对所有摄像头画面进行匿名化处理，并仅统计车辆数量，不追踪车牌或个人身份。
Adaptive traffic signals use radar, cameras, and connected vehicle data to monitor vehicle flow, waiting times, and pedestrian crossings in real time. 自适应交通信号灯利用雷达、摄像头和联网车辆数据，实时监测车流、等待时间和行人过街情况。

这篇中文题目最接近哪一句？智能交通灯如何缓解拥堵一次学校运动会的通知一份超市购物清单

课文第一句的意思更接近？自适应交通信号灯利用雷达、摄像头和联网车辆数据，实时监测车流、等待时间和行人过街情况。今天学校放假了。请把窗户打开。

这一课主要在讲什么？（看英文标题） Smart Traffic Lights That Reduce Congestion How to cook noodles A maths worksheet

Emergency vehicles trigger priority overrides—extending green phases or clearing paths ahead using V2I (vehicle-to-infrastructure) communication.

Emergency vehicles trigger priority overrides—extending green phases or clearing paths ahead using V2I (vehicle-to-infrastructure) communication.

第一版：录下来、回听、再听标准音。系统打分以后再加。

用今天的表达，自己说一句。

例子：Emergency vehicles trigger priority overrides—extending green phases or clearing paths ahead using V2I (vehicle-to-infrastructure) communication.