In the early 1960s, Washington was one of the first states to successfully ban billboards from freeways. An exception can be seen in the lands owned by the Puyallup Tribe along I-5 near Fife, where massive billboards and video screens now flank both sides of the freeway. (Being classified as sovereign nation, the Puyallups can have their own sign laws.) If that state ban had not passed, you would now be seeing hundreds of similar signs from Vancouver to Bellingham, from Port Angeles to Spokane.
The City of Seattle, like many other cities, later passed a law limiting the installation of more billboards, aka off-premises signs. This was an outgrowth of a national effort to reduce the proliferation of commercial advertising that was spoiling our views of mountains, lakes, forests, pastoral lands, and architectural landmarks. It also took an inventory of billboards, ordering removal of those that had been erected without permits.
The City’s law was challenged in court by Ackerley Communications, the owner of most of the billboards in Seattle. The courts upheld the law but the dilemma was that there were scores of billboards in all corners of the city. So a deal was struck that if a billboard that was near certain sensitive locations, like schools or parks or homes, and was then removed, a new one could be erected in certain acceptable locations elsewhere.
Many billboards are installed in parking lots or vacant lots that have since been developed and those could not be replaced, as sign owners lost the leases. So, therefore, over time, the number of billboards would gradually decrease.
It's funny; there was a different hackernews thread just a couple days ago about banning all advertising, and billboards came up, and I posted about this.
