Callander Associates has been working with Sacramento Regional Transit District and Capitol Area Development Authority (CADA) since the preliminary design phase of the project, which included the design of improvements at both the 13th Street and 16th Street Regional Transit Stations located in the R Street Corridor. Improvements for these stations include the installation of new ADA compliant mini-high platforms, custom designed shade shelters, signage, lighting, and landscape upgrades.

One of the biggest challenges was the limited budget which put a constraint on highly desired elements which included new custom designed shade shelters at each station. To solve this challenge, Callandar Associates decided to use pre-engineered and pre-manufactured shade shelters. This cut the cost of design phase engineering costs for the project, therefore allowing more of the budget to go towards other improvements on both stations. Callandar Associates was able to manage the public's expectations with the help of Barry Wasserman (CADA's community facilitator) at several public workshops held near the site.

Construction documents are now being finalized for the project. Callander will continue to work closely with Sacramento Area Regional Transit, the Capital Area Development Agency (CADA), adjacent landowners, and other stakeholders to ensure that each station's design enhances the visitor's experience and compliments the urban fabric in which it is located.