Back in February, as city officials were considering adopting a Vision Zero program to combat the increasing number of fatal collisions involving pedestrians, a car struck and killed an 87-year-old man in a Yorba Street crosswalk on dangerous Sunset Boulevard. Police Chief Greg Suhr said his department had issued 1,500 citations for speeding and other traffic violations along Sunset since the February fatality and an injury collision in March. […] there hasn’t been a pedestrian collision, he said. At the White House Innovation for Disaster Response and Recovery Initiative Demo Day on Tuesday, agency officials will unveil their City72 Toolkit ( http://toolkit.sf72.org/), a guide for other cities and jurisdictions to riff off the city’s SF72 ( www.sf72.org/home) home system for disaster preparedness. “Historically, if you looked at how government messaging works, it would go something like this: ‘You’re going to die if you don’t get a flashlight and a kit,’ ” said Rob Dudgeon, San Francisco’s deputy director for emergency services.