"https://maps-api-ssl.google.com/maps/api/staticmap?" + size_scale +
                                    "&markers=shadow:true|scale:2|icon:" + pickup_pin_url + "|" + start_source_location +
                                    "&markers=shadow:false|scale:2|icon:" + desination_pin_url + "|" + end_source_location + "&path=" + path;