The intersection of 15th Avenue and Irving is the only one between 9th and 19th Avenues that does not have a 4-way stop (17th Avenue recently had one installed). This, in conjunction with the location of this intersection at the peak of an incline, with awkward 90-degree parking on Irving makes it difficult for most road users (cars, bicycles, and pedestrians alike) to see each other even under the best of conditions. Furthermore, there shouldn't be any existing expectation of speed while traversing Irving, as both Lincoln, Judah, and Kirkham are much faster and have much less foot and bicycle traffic to interact with.
