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Instantaneous Induction Loops Detectors
参考链接：http://sumo.dlr.de/wiki/Simulation/Output/Instantaneous_Induction_Loops_Detectors
Instantaneous Induction Loops Detectors
配置方法
（1）新建.xml文件（例如instantE1.xml），并在其中输入：
（2）在命令行启动sumo时输入如下命令：
sumo-gui -c Crossing8.sumo.cfg --additional-files E1.xml 或者在cfg文件中添加相应语句，如下：
<configuration> <input> <net-file value="Crossing8.net.xml"/> <route-files value="Crossing8.rou.xml"/> <step-length value="1"/> <additional-files value="E1.xml"/> </input> </configuration> 输出内容
<instantE1 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://sumo.dlr.de/xsd/instant_e1_file.xsd"> <instantOut id="instantE1_1" time="61.89" state="enter" vehID="9" speed="6.11" length="5.00" type="DEFAULT_VEHTYPE"/> <instantOut id="instantE1_1" time="62.00" state="stay" vehID="9" speed="6.11" length="5.00" type="DEFAULT_VEHTYPE"/> <instantOut id="instantE1_1" time="62.58" state="leave" vehID="9" speed="7.43" length="5.00" type="DEFAULT_VEHTYPE" occupancy="0.69"/> <instantOut id="instantE1_1" time="67.54" state="enter" vehID="13" speed="8.07" length="5.00" type="DEFAULT_VEHTYPE" gap="4.96"/> <instantOut id="instantE1_1" time="68.00" state="stay" vehID="13" speed="8.07" length="5.00" type="DEFAULT_VEHTYPE"/> <instantOut id="instantE1_1" time="68.13" state="leave" vehID="13" speed="9.93" length="5.00" type="DEFAULT_VEHTYPE" occupancy="0.59"/> </instantE1> 其中：
每辆车输出三个时刻的值：进入线圈时、在线圈上时，离开线圈时，用输出文件中的state标识。
| Name | Type | Description |
|---|---|---|
| id | id | The id of the detector |
| time | s | The time the event occured |
| state | The event type, see above | |
| vehID | The id of the vehicle which is on the detector | |
| speed | m/s | The speed of the vehicle in this time step |
| length | m | The length of the vehicle |
| type | The type of the vehicle |
| Name | Type | Description |
|---|---|---|
| gap | s | The time gap between the vehicle which left the detector before and the one which entered it now; please note that this value is generated only, if another vehicle has already left the detector. |
| Name | Type | Description |
|---|---|---|
| occupancy | s | The time the vehicle was on the detector. |