Traffic spikes are an effective way to control access to restricted areas, such as parking lots and private driveways. There are two types of traffic spikes available, surface mount spikes and in-ground spikes. Surface mount spikes are easy to install and remove when not in use, while in-ground spikes are installed in a recessed pit in the pavement and are less visible when not in use. By preventing unauthorized vehicles from entering restricted areas, traffic spikes can increase security, reduce liability, and are a cost-effective option compared to other access control methods. However, it's important to ensure that appropriate signage and warnings are provided to alert pedestrians and cyclists of their presence, and that emergency vehicles can still access the area when needed.