摘要
通过车流量实测和等效车流量转换、车辆基准辐射噪声声压级实测和声功率级转换的方法计算城市路网交通噪声总声能量。海口市道路车流量日变化曲线呈现两个层次和双峰双谷形,市区路网机动车行驶总功率(昼间)为0.065kW,昼间12h行驶总声能占全天24h总声能的73.6%,车辆行驶平均声功率为9.3×10-6kW/辆。
By measuring and transforming vehicle flow and vehicle reference radiation noise energy in Haikou, a macroscopic calculation method for the total traffic sound energy was discussed. The curve of the traffic vehicle flow shows two levels and two peaks-two valleys type during one day. The 12h average of the total sound energy power is 0.065kw for all vehicles running on the way in daytime, occupying 73.6 percent of all the 24h sound energy power. The average sound energy power is 9.3×10^(-6)kW for single vehicle running on the main urban road.
出处
《噪声与振动控制》
CSCD
北大核心
2005年第3期42-44,共3页
Noise and Vibration Control
关键词
声学
交通噪声能量
宏观测算
海口市
acoustics
traffic sound energy
macroscopic calculation
Haikou
