Map of highway signs

<img width=“750” height=“422” src=“https://flowingdata.com/wp-content/uploads/2021/11/insterstate-signs-750x422.png" class=“attachment-medium size-medium wp-post-image” alt=“” loading=“lazy” srcset=“https://flowingdata.com/wp-content/uploads/2021/11/insterstate-signs-750x422.png 750w, https://flowingdata.com/wp-content/uploads/2021/11/insterstate-signs-1090x614.png 1090w, https://flowingdata.com/wp-content/uploads/2021/11/insterstate-signs-210x118.png 210w, https://flowingdata.com/wp-content/uploads/2021/11/insterstate-signs …