Loading...
11/12/1992 - Packet AGENDA TRANSPORTATION ADVISORY COMMITTEE THURSDAY, NOVEMBER 12, 1992 - 7:00 PM TIGARD CITY HALL -ASH CREEK CONFERENCE ROOM 13125 SW HALL BLVD. TIGARD, OREGON City of Tigard 1. CALL TO ORDER 2. ROLL CALL: SCHWEITZ MOORE ETZEL HOLLAND NEWCOMB WATERMAN 3. Review of"Gaarde Street Extension"revision to Comprehensive Plan Transportation Map. AT 7:30 P _ WE WILL DISCUSS BOARD AND COMMITTEE STRUCTURE UPDATE 4. Recommendation on Capital Improvement Plan priorities. 5. Update on discussion of merger of Transportation Advisory Committee and Planning Commission duties. 6. Other business. 7. Adjournment TO ENSURE A QUORUM TO CONDUCT BUSINESS, PLEASE CALL LIZ NEWTON AT 639-4171, EXTENSION 308 IF YOU ARE UNABLE TO ATTEND. h:JloginVo Jtac A MEMORANDUM CITY OF TIGARD TO: Transportation Advisory Committee October 29, 1992 FROM: Randy Wooley, City Engineer SUBJECT: November meeting 1 . Attached is a report on the Gaarde Street Extension, a proposed revision to the Comprehensive Plan Transportation Map. This item is currently scheduled to be heard by the Planning Commission at their December 7th meeting. So, if the Transportation Committee wishes to formally comment on this proposal, your comments should be adopted in November so they can be considered by the Planning Commission. 2 . The streets capital improvement plan for the current fiscal year included a project to reconstruct the Main Street pavement between Scoffins Street and Highway 99W/Greenburg Road intersection. In September the City Council voted to delete the Main Street project, citing concerns that the Main Street connection to Greenburg may be realigned in the coming years in conjunction with other projects . The Council requested that the Transportation Advisory Committee recommend an alternative project . The alternative project can be anywhere in the City. We have reviewed and updated project budgets. In general, projects are being completed for less than the budgeted amounts . Much of the funds budgeted for contingencies has not been needed. These savings, along with deletion of the Main Street project, leaves $190, 000 of gas tax money available for other projects . When you reviewed project priorities in April and May, you were considering safety improvements on Bonita Road, safety improvements near Templeton School, and additional major maintenance work as potential alternatives to the Main Street project. The Bonita Road project would raise the road on the east approach to the railroad crossing to improve sight distance and reduce the bump. Shoulders would be added to the road to improve pedestrian and vehicle safety. The estimated cost is $130, 000 . This project was eliminated previously because we thought that Durham Road between Hall and 72nd would be under construction during 1993 and we did not want Bonita under construction at the same time. However, the County now indicates that the Durham project will not start before the fall of 1993 . In the Templeton School area the concern is for pedestrian facilities . Attached is a form letter from the Templeton PSO. We received copies of this letter from a number of parents this past summer. This . year' s projects addressed some of the concerns by adding bikeways on 97th and by completing the sidewalk along Sattler. Streets near the school that still have no pedestrian facilities include 96th Avenue and Murdock Street . Adding paved shoulders on 96th between Sattler and Murdock has an estimated cost of $35, 000 . Adding shoulders on Murdock between 98th and 103rd has an estimated cost of $100, 000 . The Murdock project would require acquisition of right of way or easements and substantial disruption to existing landscaping. If major maintenance is selected, we recommend that the funds be used to provide a structural overlay on 72nd Avenue between Bonita Road and Upper Boones (Carmen Drive) and on Tiedeman between Greenburg Road and Tigard Street . These pavements are experiencing distress due to heavy truck traffic. The structural overlay would extend the life of the streets . These overlay projects would require the entire $190, 000 . Other alternative projects previously considered include installation of a traffic signal or funding of design for a larger project . The next priority on traffic signal projects appears to be the Hall/Pfaffle intersection. The estimated cost is $100, 000 . However, recent widening and sight distance improvements at the intersection have reduced the need for a signal. On the Committee' s previous priority list for larger projects, the next priority was replacement of the Grant Avenue bridge at Fanno Creek. If we were to fund just design and right of way, the estimated budget would be $75, 000 . 3 . Attached is a memo from Liz Newton regarding recent discussions of the potential merger of the Transportation Advisory Committee into the Planning Commission. rw/ttac-nov Templeton PSO and Parents Templeton Elementary 9500 SW Murdock St. Tigard, Oregon 97224 Randy Wooley City Engineer 13125 SW Hall Blvd. JUN 1 0 1992 Tigard, Oregon 97223 CITY OF TIGARD Dear Randy: We as parents in the Templeton school attendance area are concerned over the lack of sidewalks approaching our elementary school. Coming into the school there are no sidewalks at all and on the 4 feeder streets that come into the school ( 97th, 98th, Murdock, and parts of Sattler) there is only an occasional short strip of sidewalk. Although many of our students are bussed, there is also a large part of the school population the walks or rides bikes on a daily basis and we see the lack of adequate access to our school as being very dangerous to our young people. We have noticed that there are more and more sidewalks being constructed in the Tigard Area and want to let you know that we feel that the area surrounding Templeton Elementary should be targeted as an area of necessity when planning for future sidewalks in our community. Thank you, &A) % lay_ Templeton Parent October 1992 Requested Revision to the Comprehensive Plan Transportation Map GAARDE STREET EXTENSION Proposal Currently,the Comprehensive Plan Transportation Map includes a study area referenced to Note 2. Note 2 indicates that two options are under consideration for a future connection between the Walnut/132nd intersection and the Gaarde/121st intersection. It is proposed to select one of the two options under consideration and to amend the Comprehensive Plan Transportation Map to reflect the option chosen. History In 1983, the City of Tigard and Washington County both adopted comprehensive plans that called for a future extension of Murray Boulevard to connect with the intersection of Walnut Street and 135th Avenue. Both plans also called for future connections between Walnut Street and Gaarde Street in the area west of 121st Avenue. No specific alignments were indicated. In 1986, Washington County entered into urban planning area agreements with the cities of Beaverton and Tigard. The agreements indicated that the extension of Murray Boulevard would be designated as a collector street and provided a drawing showing the alignment between Old Scholls Ferry Road and Walnut Street. In addition, the agreements stated that an alignment would be developed for a collector street between the 135th Avenue/Walnut Street and the 121 st Avenue/Gaarde Street intersections. The agreements established design standards for the road. In 1989, the City began its Northeast Bull Mountain Transportation Study, intended to define the future collector street system for the area. Following several public meetings, including hearings before the Planning Commission and the City Council, most of the recommendations of the Northeast Bull Mountain Transportation Study Report were adopted in April of 1990. However, the recommendations regarding the connection between 135th/Walnut and 121st/Gaarde intersection were not adopted; at the close of the hearings, two options remained under consideration. In addition, the Council had heard requests that the urban planning area agreements be amended to delete the Murray Boulevard connection between Old Scholls Ferry Road and Walnut Street due to GAARDE STREET EXTENSION - October 1992 Page 1 concerns about through traffic. Selection of the preferred option for the Walnut-Gaarde connection was deferred pending a decision on whether the urban planning area agreement would be modified. In subsequent discussions with other jurisdictions, there was not support for amending the urban planning area agreements. However, there was support for an agreement on the timing of the proposed Murray Boulevard extension. As a result, an agreement was drafted that assures that the Murray Boulevard extension between Scholls Ferry Road and Old Scholls Ferry Road shall not be opened to through traffic prior to the completion of other road improvements on the west side of Bull Mountain as provided in the County's Transportation Plan. The agreement is intended to discourage the development of the Murray Boulevard extension as a route for through traffic. The agreement has been approved by Washington County and the cities of Beaverton and Tigard; the agreement was signed in January 1992. When Tigard's Comprehensive Plan Transportation Map was updated in 1991, a study area was added to indicate the two options still being considered for the collector street connection between Walnut Street and Gaarde Street. The study area is known as "Note 2". A copy of the map is included as Attachment #1. It is now proposed that the process be completed by adopting one of the options for a collector street connection between Walnut Street and Gaarde Street. Report Option The 1990 recommendation of the City staff was contained in Figure 12-1 of the Northeast Bull Mountain Transportation Study Report. (See Attachment #2.) Under this plan, Gaarde Street would be extended as a major collector street west and north from 121 st Avenue to connect to Walnut Street at a location 300 feet to 400 feet east of existing 132nd Avenue. In addition,the Report recommended that side street access to the major collector be restricted,that direct driveway access be prohibited, and that reduced design widths be considered between access points. This option will be referred to as the Report Option. NPO Option The Neighborhood Planning Organization (NPO#3) recommended that Gaarde Street be extended west from 121 st as a minor collector, connecting to 132nd Avenue. The NPO recommended that the street be designed for a speed of 25 mph. Under this option, existing 132nd Avenue would provide the collector street connection between Gaarde and Walnut Streets. In 1991 a preliminary plat was submitted for a subdivision along the 132nd Avenue extension west of the Gaarde/121 st intersection. During the hearings on the proposed GAARDE STREET EXTENSION - October 1992 Page 2 subdivision, there was substantial discussion of whether the subdivision should provide for the westward extension of Gaarde as proposed by the NPO. After reviewing alternatives submitted by the applicant, the Planning Commission voted to approve a preliminary subdivision layout that did not directly provide for the Gaarde extension to 132nd. Commission members were persuaded that the site was not suitable for construction of an east-west collector street due to steep grades. Evidence was provided that a collector connection to 132nd Avenue could better be provided north of the site where grades are less steep. On appeal, the Planning Commission's decision was upheld by the City Council in Resolution 91-75. Consequently, the NPO Option represented in Attachment #3 shows Gaarde extended west and north from 121 st to intersect 132nd at a location near Benchview Terrace (north of the approved subdivision site). Traffic Comparisons In conjunction with the Northeast Bull Mountain Transportation Study, future traffic volumes on the collector street system were forecast. The forecasts assumed full development of the area, based on maximum practical development under existing zoning and recognizing the development restrictions of steep slopes, drainageways and existing subdivisions. Based on these forecasts, Appendix E in the Northeast Bull Mountain Study Report contains material on future street capacities. Appendix E indicates that the collector street system designed to typical City of Tigard standards will provide acceptable levels of service under projected future traffic volumes, except at a few intersections. Additional traffic lanes may be needed in the future at some intersections. These intersections are along the Walnut/Murray connector from 135th to Scholls Ferry Road; along Gaarde Street near Highway 99W; and possibly at the intersection of 121st and Walnut. The information in Appendix E assumed that the Report Option would be adopted. Selection of the NPO Option would not change the general conclusions stated above. However, selection of the NPO Option would change traffic projections on some streets, as discussed below. All discussion is based on work done in 1990 in conjunction with the Northeast Bull Mountain Transportation Study. Copies of the 1990 Study Report are available for review in the City Engineering Department. The NPO Option would reduce the future traffic on Gaarde Street. West of 121st Avenue,the build-out traffic under the NPO Option would be approximately 5,000 vehicles per day, compared to 10,000 vehicles per day under the Report Option. Under either option, the projected volumes exceed the guidelines for a minor collector street and fall within the volumes typical for a major collector. A two-lane street with a center turn lane at intersections would be adequate under either option. GAARDE STREET EXTENSION - October 1992 Page 3 On Gaarde Street near Highway 99W, the NPO Option reduces projected traffic volumes by approximately 20%. The need for future additional turn lanes would be delayed but the long-term facility requirements would be generally the same as for the Report Option. On Walnut Street near 135th,the NPO Option reduces projected build-out traffic volumes from approximately 16,000 vehicles per day under the Report Option to approximately 10,000 vehicles per day under the NPO Option. Any need for additional future lanes at the 135th intersections would probably be eliminated under the NPO Option. Traffic removed from Gaarde Street under the NPO Option would divert to other routes. Impacts would be most noticeable south of Walnut Street on 132nd Avenue and 121st Avenue. Under the Report Option, 132nd would remain a local street between Walnut and Benchview. Under the NPO Option, 132nd would become a collector street with a projected traffic volume of 4,000 vehicles per day. On 121st between Walnut and Gaarde, the projected traffic under the NPO Option is roughly twice the projected traffic under the Report Option. When compared to the Report Option, the NPO Option is projected to increase future traffic volumes on 121st north of Walnut by approximately 17% and on Bull Mountain Road west of the 135th extension by approximately 29%. Smaller increases could be expected on other collector streets including the 135th extension south of Walnut, North Dakota Street, Bull Mountain Road east of the 135th extension, and the future Sunrise Lane connection. These traffic comparisons are summarized in Attachment No. 4. Land-Use Impacts In general, both options are located through currently undeveloped property. The roadways would be constructed as new subdivisions are developed in the area. Roadway alignments and grades would be coordinated with the design of the new subdivisions. An exception in the Report Option is the area immediately south of Walnut Street. To complete the connection to Walnut, it is likely that the City would eventually need to acquire and remove two existing homes. An exception in the NPO Option is the area along existing 132nd Avenue south of Walnut Street. The existing street is narrow and has no sidewalks. Several of the existing homes have very steep driveways. Widening this portion of 132nd to collector standards or adding sidewalks would require major reconstruction of driveways. In some cases, it might be necessary to abandon vehicle accesses to existing garages. Major retaining walls would be necessary in some locations. GAARDE STREET EXTENSION - October 1992 Page 4 Coordination with Other Plans State regulations require that comprehensive plans be coordinated with those of adjoining jurisdictions. The existing Regional Transportation Plan, the Washington County Transportation Plan, and the urban planning area agreements with the County and the City of Beaverton all call for a collector street connection between 135thmalnut and 121 sVGaarde intersection. To satisfy State regulations, Tigard must either adopt a plan consistent with these other existing plans or persuade the other jurisdictions to amend their plans. When the other plans were adopted, it was envisioned that the connection between Walnut and Gaarde would be a direct extension of Murray Boulevard. It could be argued that neither of the options currently under consideration precisely complies with this concept. However, the Report Option is more closely in compliance than the NPO Option. Operationally, the Report Option shows little difference from the previously planned concept. Its route is only slightly different from those considered when the comprehensive plans were adopted. During the Northeast Bull Mountain Transportation Study, this route was selected and the direct-connection routes were rejected in order to minimize impacts on existing development. From previous discussions with County staff, it appears that this option is sufficiently in conformance with existing plans to be considered in compliance. It appears that adoption of the Report Option would not require amendment of the other existing plans. The NPO Option deviates furtherfrom the direct-connection concept. As proposed by the NPO, this option would not comply with the design standards adopted in the urban planning area agreements. If this option is selected, it appears that Tigard would need to request corresponding amendments in the other plans and agreements prior to adopting the plan. Timing and Fundinq Whichever option is chosen, it is anticipated that the improvements will be made as development of the area occurs. Each subdivision would construct its piece of the roadway as part of the subdivision improvements. The countywide TIF (Traffic Impact Fee) ordinance provides for TIF credits to developers who construct portions of this roadway connection. The TIF credits would apply to all of the Report Option route; it is not clear which portions, if any, of the NPO Option route would qualify for the TIF credits. The area immediately adjacent to Walnut Street is already developed and is unlikely to experience substantial redevelopment within the next 20 years. In this area the collector street improvements would likely need to be completed by the City. Under the Report Option, TIF funds could be used be used to complete the collector street. It is not clear GAARDE STREET EXTENSION - October 1992 Page 5 if TIF funds could be used to upgrade existing 132nd Avenue to collector standards under the NPO Option. Preliminary cost estimates indicate that the NPO Option would be more expensive than the Report Option to construct. Because the NPO Option would traverse more steep terrain, it would require more earthwork than the Report Option. Widening of existing 132nd Avenue to collector standards would require extensive earthwork, construction of retaining walls, right of way acquisition, and reconstruction of existing driveways. It is estimated that the improvements requiring City funding would cost approximately $150,000 to $200,000 more under the NPO Option. Since construction is tied to private development of subdivisions, the schedule of actual construction is not known. If necessary, the City could eventually complete any missing sections of the roadway and recover the costs from developers as the remaining land is developed. Exact Alignments The Comprehensive Plan Transportation Map describes street alignments in general terms. Precise roadway alignments are usually determined at the time of actual development. The precise alignment is typically based on more detailed engineering and the needs of the specific developments that are proposed. Therefore, the proposed options describe only the approximate alignment of the future streets. When specific development proposals are considered, there is additional opportunity for public review and comment on the specific alignments. Under either option, the projected future traffic volumes are within the range associated with major collector streets in Tigard (1,500 to 10,000 vehicles per day). In either option, it is recommended that major collector standards should apply. The Report Option can more easily meet the collector standards as it follows a route with more gentle grades. The NPO Option would traverse a steep rugged area east of 132nd and would require steeper grades. Existing grades on 132nd Avenue exceed collector street standards. Discussion First review may suggest that the NPO Option is more desirable as it has lower projected future traffic volumes on the Gaarde extension. However, further review shows that under the NPO Option traffic will be diverted to other existing collector streets such as 121st, 132nd, and Bull Mountain Road. These existing streets are already substantially developed as low density residential areas and are not well planned for high traffic volumes. We conclude that it is preferable to carry more of the future traffic increase on the new roadway where new subdivisions can be appropriately designed to accommodate the greater traffic volume. This way,the increased traffic resulting from new development GAARDE STREET EXTENSION - October 1992 Page 6 will,to a greater extent, be routed to the new streets created by new development, rather than to the existing streets. Therefore, we find that the Report Option is the preferable option for the routing of traffic. We also find that the Report Option is a better route in that it will have more gentle grades, has fewer impacts to existing residential properties, and avoids the need to reconstruct existing 132nd Avenue south of Walnut. Finally, we find that the Report Option is in compliance with existing regional and local plans. We are not optimistic that the amendments to existing plans could be obtained to bring the NPO Option into compliance. Recommendations It is recommended that the Note 2 study area on the Comprehensive Plan Transportation Map be replaced by the Report Option alignment as depicted in Attachment #2. In addition, it is recommended that Note 2 be revised to read as follows: "Gaarde Street to be extended west and north from 121st Avenue to connect with Walnut Street at a point 300 feet to 400 feet east of SW 132nd Avenue. Direct driveway access shall be prohibited along the Gaarde Street extension and roadway connections shall be kept to a minimum. The width of the street may be reduced below the standards for major collector streets where turn lanes are not required." rw/note2 GAARDE STREET EXTENSION - October 1992 Page 7 ,n, COMPREHENSIVE PLAN TRANSPORTATION MAP NOTES COMPREUMSIVE PLAN 1. Scholls Ferry Road to be realigned to connect with Davies Road. TRANSPORTATION FLAP 2. Study area to determine a future connection between the Walnut/132nd REVISION SCHEDULE 2. and the Gaarde/121st intersection. A major collector extension of ORDINANCE DATE Gaarde Street has been recommended by the Northeast Bull Mountain Transportation Study Report. An indirect connection of minor collectors has 91-22 August 13, 1991 been recommended by NPO #3. 92-0007 March 24, 1992 3. Approximate alignments are shown for the extensions of 132nd Avenue south of Benchview Terrace, 135th Avenue south of Walnut Street, and Benchview Terrace west of 132nd Avenue. These streets are to be designed as minor collectors with a design speed of 25 m.p.h.. 4. Study area to determine the configuration of a new connection between southbound Pacific-Highway and Main Street. 5. Study area to determine the alignment of a minor collector street connecting 68th Parkway near Red Rock Creek with the Dartmouth Street extension; and with Hampton Street at 72nd Avenue with the Dartmouth Street extension within the westerly portion of the Tigard Triangle. 6. Study area to determine the alignment of connections between Highway 217, Kruse Way, 1-5 and the Tigard Triangle. 7. Connections between Hunziker Street, Hall Boulevard at O'Mara Street (generally) and Bonita Road. 8. Study area to consider extension of Hall Boulevard southward to connect with Boones Ferry Road in Tualatin for either pedestrian or vehicular access. 9. A local street connection from 100th Avenue to 109th Avenue intersecting 100th Avenue either at Sattler Street or at a point at least 100 feet from the existing Sattler Street intersection. 10. An extension and realignment of 109th Avenue south of the Sattler Street extension, to intersect Pacific Highway at Royalty Parkway. The realigned 109th Avenue shall intersect Naeve Street at a point approximately 250 feet to 450 feet east of Pacific Highway. 7 I mptrns.per a) .`- WW� ARTERIAL MAJOR COLLECTOR A v --- MINOR COLLECTOR v LOCAL STREET o ';'i='<#<'`' APPROXIMATE ALIGNMENT ti'M^ (Exact alignment to be a O determined at time of Ave _ � development. TRAFFIC SIGNAL 1\ y (When Warranted) E ,.._ "-1 �O s 01 v �I D 1.r„i S.W. 115th Ave`_ 991V o 1 \ v S N1 !21st REPORT OPTION ♦�—— c_ ALIGNMENT v 'r 2 '— Bull mountain Rd. intersection approximatel 700' location Corridor 1 y 71 : '<:'.,._:<:-::.:. +«rxx , west of 126th Ave. 400' ;:'. w 300• — east �::•:,:->x' rryy ,: f of 132nd Avenue ., :1L' .!r-... a:::•:.-.;:>:..;.:::::'- '' S.W. 131St W... :...;.:.::.�. at Walnut St. .j::;::.; " + :i: �✓'�''-'✓` _ •. `?4s`>. ve. I _S.W. 133rd S-W. 135th Ave. >_< _ I '.vwwriC+ri:I•:i;1'•-:-.'X.S::t {•ii:-::•i:•isi::i%titit:iir{,::};}:ii iti::�;:iv:tii�rn li;s: v :"'.:::_;:;;., '7..f-•. .�Qi I.zf::::;:ic ;:;,','•5;•i :v:>,;.;•M1;;;;::. •�:;:is �.'h Sly/ J � °'-:+}.�;::� to r';:.k•;::>'•rJ. 141st Ave. m Sunrise Ln. S.W. 150thve. ATTACHMENT NO. 2 REPORT OPTION a� aV 1MMM ARTERIAL O7 wwti KWA MAJOR COLLECTOR -- MINOR COLLECTOR ACCj�c. v LOCAL STREET 0 >::s00°a k, ? APPROXIMATE ALIGNMENT '`'° "t""'"CO 0 (Exact alignment to be o determined at time of Ave. --�� development. TRAFFIC SIGNAL \ y-� (When Warranted) C- �O 0 v`)� L 0 - u.lcin ly S_ ;�115th Ave. _ 99W -v �i C S W. 121st NPO OPTION ALIGNMENT - xSt 128th l Hull Hountain Rd- ,w :::• interaectioa e. Av approximately. 700l.'- at 00•.'- st of 126th Ave- 132nd � ,�>: :. .. : '` S.W. 131S Ave. _ ve.:X S.W.SW 133rd Aver:_: SW 135th Ave. - ?,. 141st Ave. 1� '• . . ........... Sunrise Ln. S.W. 150th Xve. ... ...... �.. ATTACIDMNT NO. 3 NPO OPTION a U) T,Pd oc; o c r+ co o 0 Ave. 0 U) c+� C S.W. 115th Ave. c 99W C6 v v S. 118,0 121st 216% \ 3. ,o SW 128th � �. Ave. Z / CD S.W 11 132n\. \ ` S.W. 131st �o \Ave.. \ �` \ Ave. 750% \ \ SW 135th Ave. SW 133rd Ave.`�� _ N or ... ...r-.._> l i \ CD S.W. 141st Ave. 0 0 Is" `� \ _f e Projected traffic under NPO Option compared to Report Option. Numbers below 100%indicate �- 10,g% . that NPO Option would have _ Sunrise Ln. less traffic than Report Option. • v ^ Numbers over 100% indicate that NPO Option would have more traffic than Report Option. ATTACHMENT NO. 4 TRAFFIC COMPARISON MEMORANDUM CITY OF TIGARD, OREGON TO: Transportation Advisory Committee Members FROM: Liz Newton, Community Involvement Coordinator DATE: November 4, 1992 SUBJECT: Transportation Planning At the October 22, 1992 City Council Meeting, Council discussed a recommendation presented by staff regarding transporation planning. The recommendation was based on the objectives Council has identified for citizen involvement, and comments from Board and Committee members regarding the current Board and Committe structure. The recommendation agreed to by unanimous council consensus is as follows: Incorporate the transportation planning function into the Planning Commission. Appoint a Transportation Advisory Board member to the current Planning Commission vacancy. Appoint a Transportation Advisory member to the Planning Commission seat vacated by Wendi Hawley in January. It is important to the Council, for continuity, that members of the Transportation Advisory Committee serve on the Planning Commission. We are looking for volunteers to complete the two unexpired terms. For your information, one term expires on August 27, 1994; the other on July 1, 1995.