def compileSignalSpeed(self, line):
        # Wait while signal mast <mast name> speed is less than <aspect name> speed
        if logLevel > 2: print '  {} - {}'.format(self.threadName, line)
        pattern = re.compile('\s*Wait\s+while\s+signal\s+mast\s+(.+\S)\s+speed\s+is\s+less\s+than\s+(.+\S)\s+speed')
        result = re.findall(pattern, line)