Beware!!  You can only enter a crosswalk when the green walk sign is flashing.  When the amber stop hand starts flashing you can not enter the crosswalk.  Sometimes the change from Walk to No Walk is only seconds.  This has caught many people downtown, including me, and HPD cuts no slack.  When they is a group of people waiting to cross, most do not have time to enter the crosswalk before the No Walk sign flashes.  Great money maker for the City and County!  I guess they need all the cash they can find to fund the rail.