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You may be interested in the concept of intermittent bus lanes (IBL), recently tested in Lisbon: http://pubsindex.trb.org/document/view/default.asp?lbid=802041 http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6VGJ-4D5X9KY-1 &_user=65461&_coverDate=12%2F01%2F2004&_rdoc=1&_fmt=&_orig=search&_sort= d&view=c&_acct=C000005458&_version=1&_urlVersion=0&_userid=65461&md5=4f3 586af98ceee505ddbadec88e272ac Here at ITS Leeds Ronghui Liu has also been working on some public transport enhancements to the DRACULA microsimulation software which allow for improved simulation of bus operations. Pedro Abrantes Lecturer in Public Transport Institute for Transport Studies University of Leeds Leeds LS2 9JT Tel.: 0113 34 35344 [log in to unmask] -----Original Message----- From: Jonathan Richmond [mailto:[log in to unmask]] Sent: 05 December 2007 08:56 Subject: optimizing busway throughput Date: Wed, 5 Dec 2007 12:49:00 +0400 (Arabian Standard Time) From: Jonathan Richmond <[log in to unmask]> To: Chris Cherry <[log in to unmask]> Cc: [log in to unmask], Sustran List <[log in to unmask]> Subject: [sustran] Re: Jakarta busway twists and turns? I am very interested in this - does anyone think that this principle could be extended to optimizing the use of BRT rights of way to allow buses to enter and leave at various points without causing congestion? On Tue, 4 Dec 2007, Chris Cherry wrote: > There has been some research coming out of the transportation engineering > (Michael Cassidy and Carlos Daganzo) group looking at trying to maximize the > use of these "empty" BRT lanes (or any limited access lane for that matter). > Essentially, if planned right, one could allow vehicles to enter the > restricted lane only at bottlenecks in the system and thus vastly increase > the throughput of cars with minimal disruption to buses. They have been > looking at this from the context of HOV lanes in the USA, but have recently > been trying to apply the theory to busways in China. This would ultimately > improve the efficiency of the transportation system, reduce congestion and > potentially allow the drivers to perceive the BRT system in a better light. > Of course there are a lot of policy issues around letting cars in some > strategic areas of the BRT system and convincing them that it is not > beneficial to let them in the entire system. Here are a couple of paper out > of the UC-Berkeley Volvo Center > > http://www.its.berkeley.edu/publications/UCB/2007/VWP/UCB-ITS-VWP-2007-1 .pdf > http://www.its.berkeley.edu/publications/ucb/2005/vwp/ucb-its-vwp-2005-2 .pdf > > > Chris Cherry > Assistant Professor > Civil and Environmental Engineering > University of Tennessee-Knoxville > 223 Perkins Hall > Knoxville, TN 37996-2010 > phone: 865-974-7710 > mobile: 865-684-8106 > fax: 865-974-2669 > http://web.utk.edu/~cherry > > > ----- Jonathan Richmond Transport Adviser to the Government of Mauritius Ministry of Public Infrastructure, Land Transport and Shipping Level 4 New Government Centre Port Louis Mauritius +230 707-1134 (Mauritius mobile: most reliable way to reach me at all times) +1 (617) 395-4360 (US phone number rings at home -- call me in Mauritius for the price of a call to the US). +1 (425) 998-0998 (US phone number, connects to mobile phone when in wifi zone, or goes to voice mail) +44 (0)7978 807532 (UK mobile number, connects to mobile phone when in wifi zone, or goes to voice mail). This is also a SIP number. If you have a SIP phone you can reach me by dialing: sip:[log in to unmask] From Google Talk you can add me as a contact by clicking add and then entering [log in to unmask] Clicking on this address will then ring my mobile phone when I am in a wifi zone, or go to voice mail at other times. e-mail: [log in to unmask] http://the-tech.mit.edu/~richmond/