根据往届世博会经验，临近闭幕，观博客流将出现明显的“翘尾”效应。上周末两天（10月16日、17日）入园参观者分别达到103.27万人和74.49万人，大幅刷新世博会历史纪录。

组织者表示，综合世博会客流规律以及团队预约等因素，本周末园区再现超大客流的概率较大，希望游客能合理安排参观时间，尽量避开周末大客流。

据上海世博局票务中心负责人介绍，10月25日至31日属于世博会指定日，游客持平日票无法直接入园。考虑到部分游客闭幕前观博的强烈愿望，10月13日至29日，园区现场售票处除正常销售指定日票外，还提供平日票补差价换指定日票、平日票换当日夜票等多种便利措施，方便游客参观。

组织者再次提醒广大游客，10月30日和31日两天园区现场将不提供任何售票和换票服务。

The Expo organizers yesterday advised people to avoid coming on Saturday and Sunday as huge crowds are expected at this weekend.

Since the last week of World Expo, October 25 to 31, requires peak day tickets, this weekend will be the last chance for visitors to use their standard day tickets.

As the Expo is coming to an end, a vast number of visitors are expected to throng the venues, based on the past experience of World Expo, the organizers said.

A total of 1.03 million people flooded to the site last Saturday, breaking the day-volume record of 835,832 set by Expo Osaka in 1970.

Admission for the last week will cost 200 yuan (US$29.33), 40 yuan more than a standard day ticket.

The organizers will halt ticket sales and exchange service on the last two days of the world fair, namely October 30 and 31, due to a large number of important events.

A 160-yuan (US$24) standard day ticket can be changed for two night tickets (90 yuan each) at the gates from 4pm to 8:50pm until October 29.

Visitors can buy peak day tickets at the gates or at the outlets of five Expo ticketing agents – China Mobile, China Telecom, Bank of Communications, China Post, and Shanghai Brilliance Group.