The Hammers have managed to keep four clean sheets on their travels, conceding just one goal on the road all season.
"Harry [Redknapp] would always say even in the great days gone by when he played with Bobby Moore, Martin Peters and all those great, great legends at West Ham they were always a bit of a soft touch on the road," he told the club's official website.
"The fact that Sam [Allardyce] has got them more solid now will mean they can pick up more points on the road. He's obviously addressed that, looked at them over the years and by defending really solidly and not conceding goals you're obviously going to pick up more points on the road."
West Ham visit Norwich City in the Premier League on Saturday.