Traffic Crashes - Vehicles

This dataset contains information about vehicles (or units as they are identified in crash reports) involved in a traffic crash. This dataset should be used in conjunction with the traffic Crash and People dataset available in the portal. “Vehicle” information includes motor vehicle and non-motor vehicle modes of transportation, such as bicycles and pedestrians. Each mode of transportation involved in a crash is a “unit” and get one entry here. Each vehicle, each pedestrian, each motorcyclist, and each bicyclist is considered an independent unit that can have a trajectory separate from the other units. However, people inside a vehicle including the driver do not have a trajectory separate from the vehicle in which they are travelling and hence only the vehicle they are travelling in get any entry here. This type of identification of “units” is needed to determine how each movement affected the crash. Data for occupants who do not make up an independent unit, typically drivers and passengers, are available in the People table. Many of the fields are coded to denote the type and location of damage on the vehicle. Vehicle information can be linked back to Crash data using the “CRASH_RECORD_ID” field. Since this dataset is a combination of vehicles, pedestrians, and pedal cyclists not all columns are applicable to each record. Look at the Unit Type field to determine what additional data may be available for that record.

The Chicago Police Department reports crashes on IL Traffic Crash Reporting form SR1050. The crash data published on the Chicago data portal mostly follows the data elements in SR1050 form. The current version of the SR1050 instructions manual with detailed information on each data elements is available <a href="https://idot.illinois.gov/Assets/uploads/files/Transportation-System/Manuals-Guides-&-Handbooks/Safety/Illinois Traffic Crash Report SR 1050 Instruction Manual 2019.pdf">here</a>.

Change 11/21/2023: We have removed the RD_NO (Chicago Police Department report number) for privacy reasons.

本数据集收录了涉及交通事故的车辆（或如事故报告中所述的单元）相关信息。该数据集应与门户中可用的交通事故及人员数据集结合使用。其中‘车辆’信息包括机动车和非机动车交通方式，如自行车和行人。每次事故中涉及的交通方式均被视为‘单元’，并在本处获得一个条目。每辆车辆、每位行人、每位摩托车手和每位骑自行车者均被视为一个独立的单元，可以拥有与其他单元不同的轨迹。然而，车辆内部的人员，包括驾驶员，其轨迹与所乘车辆相同，因此仅记录他们所乘坐的车辆。此类‘单元’的识别对于确定每个移动如何影响事故至关重要。关于不构成独立单元的乘客，如驾驶员和乘客的数据，可在人员表中找到。许多字段均采用编码方式来表示车辆损坏的类型和位置。通过‘CRASH_RECORD_ID’字段可以将车辆信息与事故数据相链接。由于本数据集是车辆、行人和踏自行车组合的，并非所有列都适用于每条记录。请查看单元类型字段以确定该记录可能包含哪些附加数据。

芝加哥警察局使用 IL 交通事故报告表 SR1050 报告事故。芝加哥数据门户上发布的事故数据大多遵循 SR1050 表的数据元素。SR1050 指令手册的当前版本，其中包含每个数据元素的详细信息，可在以下链接找到：<a href="https://idot.illinois.gov/Assets/uploads/files/Transportation-System/Manuals-Guides-&-Handbooks/Safety/Illinois Traffic Crash Report SR 1050 Instruction Manual 2019.pdf">此处</a>。

2023年11月21日更新：出于隐私考虑，我们已移除 RD_NO（芝加哥警察局报告编号）。